| 1. |
Otsuka T, Kikuchi K, Togao O, Yamashita K, Takagishi S, Arimura K, Nakamizo A, Ishigami K., Advantages of 3D High-Resolution Vessel Wall Imaging in a Patient With Blood Blister-Like Aneurysm: A Case Report and Literature Review., Cureus, 10.7759/cureus.58376., 16, 4, e58376, PMID: 38756273, 2024.04. |
| 2. |
Kikuchi K, Togao O, Yamashita K, Isoda T, Nishimura A, Arimura K, Nakamizo A, Yoshimoto K, Ishigami K., Brain volume measured by synthetic magnetic resonance imaging in adult moyamoya disease correlates with cerebral blood flow and brain function, Sci Rep., 10.1038/s41598-024-56210-2., 14, 1, 5468, PMID: 38443400, 2024.03. |
| 3. |
Kazufumi Kikuchi, Osamu Togao, Koji Yamashita, Daichi Momosaka, Yoshitomo Kikuchi, Daisuke Kuga, Sangatsuda Yuhei, Yutaka Fujioka, Fumiya Narutomi, Makoto Obara, Koji Yoshimoto, Kousei Ishigami, Comparison of diagnostic performance of radiologist- and AI-based assessments of T2-FLAIR mismatch sign and quantitative assessment using synthetic MRI in the differential diagnosis between astrocytoma, IDH-mutant and oligodendroglioma, IDH-mutant and 1p/19q-codeleted, Neuroradiology, 10.1007/s00234-024-03288-0., 66, 3, 333-341, 10.1007/s00234-024-03288-0., 2024.03. |
| 4. |
Tokiko Abe, Koji Yamashita, Kazufumi Kikuchi, Eriko Hatai, Fumihiko Fujii, Pin Fee Chong, Yasunari Sakai, Hirotomo Saitsu, Ken Inoue, Osamu Togao, Kousei Ishigami , Diagnostic MR Imaging Features of Hypomyelination of Early Myelinating Structures: A Case Report., The Neuroradiology Journal, 10.1177/19714009231224419., 10.1177/19714009231224419., 2024.03. |
| 5. |
Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga MD, Yuhei Sangatsuda, Yutaka Fujioka, Koji Yoshimoto, Kousei Ishigami, The cortical high-flow sign of oligodendroglioma, IDH-mutant and 1p/19q codeleted: comparison between arterial spin labeling and dynamic susceptibility contrast methods, Neuroradiology, 10.1007/s00234-023-03267-x, 66, 2, 187-192, 10.1007/s00234-023-03267-x, 2024.02, Purpose: The cortical high-flow sign with the non-enhancing area was reportedly found to be more frequent with oligodendroglioma, IDH-mutant and 1p/19q codeleted (ODG IDHm-codel) than with IDH-wildtype or astrocytoma, IDH-mutant on arterial spin labeling (ASL) in diffuse gliomas. This study aimed to compare the identification rate of the cortical high-flow sign on ASL in patients with ODG IDHm-codel to that on dynamic susceptibility contrast-enhanced perfusion-weighted imaging (DSC-PWI). Methods: Participants consisted of 32 adult ODG IDHm-codel patients with pathologically confirmed. Subtraction images were generated from paired control and label images on ASL. For DSC, dynamic T2*-weighted perfusion weighted images were obtained after pre-bolus of gadolinium-based contrast agent. Regional cerebral blood flow/volume maps were generated based on the concentration-time curve and arterial input function. Tumor-affecting cortices without contrast enhancement on conventional MR imaging were targeted. The identification rate of the cortical high-flow sign was compared between ASL and DSC using the Pearson’s Chi-Square test. Results: Frequency of the cortical high-flow sign was significantly higher on ASL (18/32, 56.3%; p |
| 6. |
Koji Yamashita, Masami Yoneyama, Kazufumi Kikuchi, Tatsuhiro Wada, Hiroo Murazaki, Hiroaki Watanuki, Ryoji Mikayama, Kousei Ishigami, Osamu Togao
, Reproducibility of quantitative ADC, T1, and T2 measurement on the cerebral cortex: Utility of whole brain echo-planar DWI with compressed SENSE (EPICS-DWI): A pilot study, Eur J Radiol Open, 11, 100516 , 2023.12. |
| 7. |
Motomuta Y, Fukuzaki A, Eto S, Hirabayashi N, Gondo M, Izuno S, Togao O, Yamashita K, Kikuchi K, Alexithymia characteristics are associated with salience network activity in healthy participants: An Arterial Spin Labeling Study, J Physiol Anthropol, 2023.08. |
| 8. |
Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga, Yuhei Sangatsuda, Yutaka Fujioka, Izumi Kinoshita, Makoto Obara, Koji Yoshimoto, Kousei Ishigami, Cortical high-flow sign on arterial spin labeling: a novel biomarker of IDH-mutation and 1p/19q-codeletion status in diffuse gliomas without intense contrast enhancement., Neuroradiology., 10.1007/s00234-023-03186-x, 65, 9, 1415-1418, 2023.09, This study aimed to investigate whether arterial spin labeling (ASL) features allow differentiation of oligodendroglioma, IDH-mutant and 1p/19q-codeleted (IDHm-codel) from diffuse glioma with IDH-wildtype (IDHw) or astrocytoma, IDH-mutant (IDHm-noncodel). Participants comprised 71 adult patients with pathologically confirmed diffuse glioma, classified as IDHw, IDHm-noncodel, or IDHm-codel. Subtraction images were generated from paired-control/label images on ASL and used to assess the presence of a cortical high-flow sign. The cortical high-flow sign was defined as increased ASL signal intensity within the tumor-affecting cerebral cortex compared with normal-appearing cortex. Regions without contrast enhancement on conventional MR imaging were targeted. The frequency of the cortical high-flow sign on ASL was compared among IDHw, IDHm-noncodel, and IDHm-codel. As a result, the frequency of the cortical high-flow sign was significantly higher for IDHm-codel than for IDHw or IDHm-noncodel. In conclusion, the cortical high-flow sign could represent a hallmark of oligodendroglioma, IDH-mutant, and 1p/19q-codeleted without intense contrast enhancement.. |
| 9. |
Shunsuke Nishimura, Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga, Hidetaka Yamamoto, Koji Yoshimoto, Kousei Ishigami, The T2-FLAIR mismatch sign in glioblastoma, isocitrate dehydrogenase wild-type, Acta Radiologica Open, 10.1177/20584601231184565, 2023.06. |
| 10. |
Koji Yamashita, Ryusuke Hatae, Kazufumi Kikuchi, Daisuke Kuga, Nobuhiro Hata, Hidetaka Yamamoto, Makoto Obara, Koji Yoshimoto, Kousei Ishigami, Osamu Togao, Predicting TERT promoter mutation status using 1H-MR spectroscopy and stretched-exponential model of diffusion-weighted imaging in IDH-wildtype diffuse astrocytic glioma without intense enhancement, Neuroradiology, 10.1007/s00234-023-03177-y, 2023.06. |
| 11. |
Tomoyuki Noguchi, Koji Yamashita, Shuji Matsuura, Ryotaro Kamei, Junki Maehara, Kiyomi Furuya, Shino Harada, Saki Adachi, Yasushi Okada, Analysis of “Visible in retrospect” to monitor false-negative findings in radiological reports, Jpn J Radiol., 10.1007/s11604-022-01338-2, 2022.10. |
| 12. |
Noguchi T, Yamashita K, Kamei R, Maehara J, Current status and challenges of percutaneous vertebroplasty (PVP): a review, Jpn J Radiol., 10.1007/s11604-022-01322-w, 2022.08. |
| 13. |
Kazufumi Kikuchi, Osamu Togao, Koji Yamashita, Daichi Momosaka, Yoshitomo Kikuchi, Daisuke Kuga, Nobuhiro Hata, Masahiro Mizoguchi, Hidetaka Yamamoto, Toru Iwaki, Akio Hiwatashi, Kousei Ishigami, Quantitative Relaxometry using Synthetic MRI Could be Better than Qualitative T2-FLAIR Mismatch Sign: A Pilot Study., Scientific Reports, 10.1038/s41598-022-13036-0, 2022; 12: 9197., 2022.06. |
| 14. |
Saki Adachi, Koji Yamashita, Akira Nakamizo, Toshiyuki Amano, Seiya Momosaki, Tomoyuki Noguchi
, Unusual imaging characteristics of cystic meningioma at the cerebellopontine angle. , Neuroradiol J. , 10.1177/19714009221096831, 3:19714009221096831., 2022.05. |
| 15. |
Fumiya Uchiyama, Tomoyuki Noguchi, Shunsuke Kamei, Koji Yamashita, Yoshitaka Shida, Takashi Okafuji, Ryotaro Kamei, Junki Maehara, Tsuyoshi Tajima
, The usefulness of vertebral needle targeting simulation training system using ray-summation imaging: Experimental study , Jpn J Radiol., [In Press], 2022.05. |
| 16. |
Koji Yamashita, Noriaki Wada, Seitaro Shin, Tetsuhiro Watanabe, Kiyomi Furuya, Shino Harada, Tomoyuki Noguchi, Right adrenal vein identification using unenhanced MR imaging., Pol J Radiol., 87, e592-e596, 2022.11. |
| 17. |
Koji Yamashita,Hiroshi Sugimori, Akira Nakamizo, Toshiyuki Amano, Takahiro Kuwashiro, Takeharu Watanabe, Keisuke Kawamata, Kiyomi Furuya, Shino Harada, Ryotaro Kamei, Junki Maehara, Yasushi Okada, Tomoyuki Noguchi
, Different hemodynamics of basal ganglia between moyamoya and non-moyamoya diseases using intravoxel incoherent motion imaging and single-photon emission computed tomography. , Acta Radiologica., 10.1177/02841851221092895, 10.1177/02841851221092895, 2022.05. |
| 18. |
Koji Yamashita, Ryotaro Kamei, Hiroshi Sugimori, Takahiro Kuwashiro, So Tokunaga, Keisuke Kawamata, Kiyomi Furuya, Shino Harada, Junki Maehara, Yasushi Okada, Tomoyuki Noguchi, Interobserver reliability on intravoxel incoherent motion imaging in patients with acute ischemic stroke., AJNR Am J Neuroradiol., 10.3174/ajnr.A7486, 43, 5, 696-700, 10.3174/ajnr.A7486, 2022.05, BACKGROUND AND PURPOSE: Noninvasive perfusion-weighted imaging with short scanning time could be advantageous in order
to determine presumed penumbral regions and subsequent treatment strategy for acute ischemic stroke (AIS). Our aim was to
evaluate interobserver agreement and the clinical utility of intravoxel incoherent motion MR imaging in patients with acute ischemic
stroke.
MATERIALS AND METHODS: We retrospectively studied 29 patients with AIS (17 men, 12 women; mean age, 75.2 [SD, 12.0 ] years;
median, 77 years). Each patient underwent intravoxel incoherent motion MR imaging using a 1.5T MR imaging scanner. Diffusion-sensitizing
gradients were applied sequentially in the x, y, and z directions with 6 different b-values (0, 50, 100, 150, 200, and 1000 seconds/
mm2). From the intravoxel incoherent motion MR imaging data, diffusion coefficient, perfusion fraction, and pseudodiffusion
coefficient maps were obtained using a 2-step fitting algorithm based on the Levenberg-Marquardt method. The presence of
decreases in the intravoxel incoherent motion perfusion fraction and pseudodiffusion coefficient values compared with the contralateral
normal-appearing brain was graded on a 2-point scale by 2 independent neuroradiologists. Interobserver agreement on the
rating scale was evaluated using the k statistic. Clinical characteristics of patients with a nondecreased intravoxel incoherent
motion perfusion fraction and/or pseudodiffusion coefficient rated by the 2 observers were also assessed.
RESULTS: Interobserver agreement was shown for the intravoxel incoherent motion perfusion fraction (k = 0.854) and pseudodiffusion
coefficient (k = 0.789) maps, which indicated almost perfect and substantial agreement, respectively. Patients with a nondecreased
intravoxel incoherent motion perfusion fraction tended to show recanalization of the occluded intracranial arteries more
frequently than patients with a decreased intravoxel incoherent motion perfusion fraction.
CONCLUSIONS: Intravoxel incoherent motion MR imaging could be performed in ,1 minute in addition to routine DWI. Intravoxel
incoherent motion parameters noninvasively provide feasible, qualitative perfusion-related information for assessing patients with
acute ischemic stroke.. |
| 19. |
Tomoyuki Noguchi, Koji Yamashita, Yoshitaka Shida, Takashi Okafuji, Ryotaro Kamei, Junki Maehara, Tsuyoshi Tajima, Accuracy of vertebral puncture in percutaneous vertebroplasty. , Jpn J Radiol. , 40(4):419-429., 2022.04. |
| 20. |
Koji Yamashita, Takahiro Kuwashiro, Kensuke Ishikawa, Kiyomi Furuya, Shino Harada, Seitaro Shin, Noriaki Wada, Chika Hirakawa, Yasushi Okada, Tomoyuki Noguchi
, Right entorhinal cortical thickness is associated with Mini-Mental State Examination scores from multi-country datasets. , Neuroradiology, 10.1007/s00234-021-02767-y., 64, 2, 279-288, 64(2):279-288., 2022.02. |
| 21. |
Yamashita K, Yasaka M, Uchino A, Noguchi T. , Unilateral agenesis of internal carotid artery with interparaclinoid and contralateral carotid-anterior cerebral artery anastomoses diagnosed by magnetic resonance angiography: a case report. , Surg Radiol Anat. , 10.1007/s00276-021-02844-0., 44(2):289-292. , 2022.02. |
| 22. |
Amano T, Nakamizo A, Murata H, Miyamatsu Y, Mugita F, Yamashita K, Noguchi T, Nagata S., Preoperative prediction of intracranial meningioma grade using conventional computed tomography and magnetic resonance imaging. , Cureus, 14(1): e21610. , 2022.01. |
| 23. |
Wada N, Yamashita K, Shin S, Harada S, Furuya K, Imamura H, Takami Y, Noguchi T, Supraduodenal and right gastric arteries originating from a common trunk: a rare anatomical variant. , Jpn J Intervent Radiol. , 6, 2, 51-54, 6(2):51-54., 2021.06. |
| 24. |
Koji Yamashita, MD, Takahiro Kuwashiro, Kensuke Ishikawa, Kiyomi Furuya, Shino Harada, Seitaro Shin, Noriaki Wada, Chika Hirakawa, Yasushi Okada, Tomoyuki Noguchi.
, Identification of predictors for MMSE and HDS-R scores using MR-based brain morphometry, Eur J Radiol Open. , 10.1016/j.ejro.2021.100359 , 8:100359 , 2021.05. |
| 25. |
Kazufumi Kikuchi, Osamu Togao, Koji Yamashita, Daichi Momosaka, Tomohiro Nakayama, Yoshiyuki Kitamura, Yoshitomo Kikuchi, Shingo Baba, Koji Sagiyama, Keisuke Ishimatsu, Ryotaro Kamei, Nobutaka Mukae, Koji Iihara, Satoshi O Suzuki, Toru Iwaki, Akio Hiwatashi, Diagnostic accuracy for the epileptogenic zone detection in focal epilepsy could be higher in FDG-PET/MRI than in FDG-PET/CT, Eur Radiol. , 31(5):2915-2922, 2021.05. |
| 26. |
Tomoyuki Noguchi, Kumi Tanaka, Yasushi Okada, Kunitaka Fukuizumi, Sachiyo Yokoda, Motoko Dairiki, Koji Yamashita, Seitaro Shin, Noriaki Wada, Shino Harada, Shigeki Morita, A practical system that enables physicians to respond expeditiously to significant unexpected findings (SUFs) in radiological reports. , Jpn J Radiol. , 39(5):424-432. , 2021.05. |
| 27. |
Osamu Togao, Makoto Obara, Michael Helle, Koji Yamashita, Kazufumi Kikuchi, Daichi Momosaka, Yoshitomo Kikuchi, Ataru Nishimura, Koichi Arimura, Tatsuhiro Wada, Hiroo Murazaki, Koji Iihara, Marc Van Cauteren, Akio Hiwatashi, Vessel-selective 4D-MR angiography using superselective pseudo-continuous arterial spin labeling for the visualization of brain arteriovenous malformations., Eur Radiol. , 30(12):6452-6463 , 2020.12. |
| 28. |
Zong X, Lian C, Jimenez J. Yamashita K, Shen D, Lin W. , Morphology of perivascular spaces and enclosed blood vessels in young to middle-aged healthy adults at 7T: Dependences on age, brain region, and breathing gas. , NeuroImage. , 10.1016/j.neuroimage.2020.116978., 218:116978. , 2020.09. |
| 29. |
Daichi Momosaka, Osamu Togao, Akio Hiwatashi, Koji Yamashita, Kazufumi Kikuchi, Hirofumi Tomiyama, Tomohiro Nakao, Keitaro Murayama, Yuriko Suzuki, Hiroshi Honda, A voxel-based analysis of cerebral blood flow abnormalities in obsessive-compulsive disorder using pseudo-continuous arterial spin labeling MRI. , PLoS One. , 15(7):e0236512. , 2020.07. |
| 30. |
Pukovisa Prawiroharjo, Ken-Ichiro Yamashita, Koji Yamashita, Osamu Togao, Akio Hiwatashi, Ryo Yamasaki, Jun-Ichi Kira, Disconnection of the right superior parietal lobule from the precuneus is associated with memory impairment in oldest-old Alzheimer's disease patients , Heliyon. , 6(7):e04516, 2020.07. |
| 31. |
Masaoki Kusunoki, Kazufumi Kikuchi, Osamu Togao, Koji Yamashita, Daichi Momosaka, Yoshitomo Kikuchi, Daisuke Kuga, Nobuhiro Hata, Masahiro Mizoguchi, Koji Iihara, Satoshi O Suzuki, Toru Iwaki, Yuta Akamine, Akio Hiwatashi, Differentiation of high-grade from low-grade diffuse gliomas using diffusion-weighted imaging: a comparative study of mono-, bi-, and stretched-exponential diffusion models., Neuroradiology. , 62:815-823., 2020.05. |
| 32. |
Yamashita K, Zong X, Hung S, Lin W, Castillo M. , Hippocampal Sulcus Remnant: Common Finding in Non-Elderly Adults on Ultra-High Resolution 7T MR Imaging. , J Comput Assist Tomogr. , 44, 1, 43-46, 44(1):43-46., 2020.01. |
| 33. |
Yojiro Akagi, Naoki Noguchi, Nobuhiro Hata, Ryusuke Hatae, Yuhei Michiwaki, Yuhei Sangatsuda, Takeo Amemiya, Daisuke Kuga, Koji Yamashita, Osamu Togao, Akio Hiwatashi, Koji Yoshimoto, Masahiro Mizoguchi, Koji Iihara, Correlation between prognosis of glioblastoma and choline/N-acetyl aspartate ratio in MR spectroscopy. , Interdiscip Neurosurg. , 18:100498 , 2019.12. |
| 34. |
Koji Yamashita, Akio Hiwatashi, Osamu Togao, Kazufumi Kikuchi, Daichi Momosaka, Hiroshi Nakatake, Nobuhiro Hata, Yojiro Akagi, Satoshi O. Suzuki, Toru Iwaki, Koji Iihara, Hiroshi Honda, Differences between Primary Central Nervous System Lymphoma and Glioblastoma: Probabilistic analysis using Voxel-based Morphometry., Clin Radiol. , 74, 10, 74(10):816.e1-816.e8, 2019.10. |
| 35. |
Osamu Togao, Akio Hiwatashi, Koji Yamashita, Daichi Momosaka, Makoto Obara, Ataru Nishimura, Koichi Arimura, Nobuhiro Hata, Koji Iihara, Marc Van Cauteren, Hiroshi Honda, Acceleration-selective arterial spin labeling MR angiography for visualization of brain arteriovenous malformations. , Neuroradiology. , 10.1007/s00234-019-02217-w., 61(9):979-989. , 2019.09. |
| 36. |
Koji Yamashita, Ryusuke Hatae, Akio Hiwatashi, Osamu Togao, Kazufumi Kikuchi, Daichi Momosaka, Yasuo Yamashita, Daisuke Kuga, Nobuhiro Hata, Koji Yoshimoto, Satoshi O. Suzuki, Toru Iwaki, Koji Iihara, Hiroshi Honda
, Predicting TERT promoter mutation using MR images in patients with wild-type IDH1 Glioblastoma. , Diagn Interv Imaging. , https://doi.org/10.1016/j.diii.2019.02.010, 100, 7-8, 411-419, 100(7-8):411-419 , 2019.07. |
| 37. |
Kam T, Wen X, Jin B, Jiao Z, Hsu LM, Zhou Z, Liu Y, Yamashita K, Hung SC , Lin W, Zhang H, Shen D, for UNC/UMN Baby Connectome Project Consortium, A Deep Learning Framework for Noise Component Detection from Resting-State Functional MRI., MICCAI 2019., 11766:754-762., 2019.07. |
| 38. |
K Kikuchi, A Hiwatashi, O Togao, K Yamashita, R Kamei, D Momosaka, N Hata, K Iihara, S O Suzuki, T Iwaki, H Honda, Intravoxel Incoherent Motion Magnetic Resonance Imaging of Pediatric Intracranial Tumors: Correlation with Histology and Diagnostic Utility. , AJNR Am J Neuroradiol. , https://doi.org/10.3174/ajnr.A6052 , 40(5):878-884 , 2019.05. |
| 39. |
Koji Yamashita, Akio Hiwatashi, Osamu Togao, Kazufumi Kikuchi, Yamato Shimomiya, Ryotaro Kamei, Daichi Momosaka, Nozomu Matsumoto, Kouji Kobayashi, Atsushi Takemura, Thomas Christian Kwee, Taro Takahara, Hiroshi Honda,
, Improved Visualization of Middle Ear Cholesteatoma with Computed Diffusion-weighted Imaging. , Magn Reson Med Sci, 18, 3, 233-237, 18(3):233-237, 2019.03. |
| 40. |
Ken-Ichiro Yamashita, Taira Uehara, Pukovisa Prawiroharjo, Koji Yamashita, Osamu Togao, Akio Hiwatashi, Yoshihide Taniwaki, Hidetsuna Utsunomiya, Takuya Matsushita, Ryo Yamasaki, Jun-Ichi Kira, Functional Connectivity Change between Posterior Cingulate Cortex and Ventral Attention Network Relates to the Impairment of Orientation for Time in Alzheimer's Disease Patients. , Brain Imaging Behav. , 13(1):154-161, 2019.02. |
| 41. |
Akio Hiwatashi, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Daichi Momosaka, Hiroshi Nakatake, Ryo Yamasaki, Hidenori Ogata, Masami Yoneyama, Jun-Ichi Kira, Hiroshi Honda, Simultaneous MR neurography and apparent T2 mapping in brachial plexus: Evaluation of patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy , Magn Reson Imaging. , 55:112-117., 2019.01. |
| 42. |
Akio Hiwatashi, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Daichi Momosaka, Hiroshi Nakatake, Ryo Yamasaki, Hidenori Ogata, Masami Yoneyama, Jun-Ichi Kira, Hiroshi Honda, Lumbar Plexus in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy: Evaluation with Simultaneous T2 Mapping and Neurography Method with SHINKEI. , Br J Radiol. , 91(1092):20180501, 2018.12. |
| 43. |
Koji Yamashita, Akio Hiwatashi, Osamu Togao, Kazufumi Kikuchi, Nozomu Matsumoto, Daichi Momosaka, Hiroshi Nakatake, Yuki Sakai, Hiroshi Honda
, Ultra-High Resolution CT Scan of the Temporal Bone., Eur Arch Otorhinolaryngol. , 275, 11, 2797-2803, 275(11):2797-2803, 2018.11. |
| 44. |
Osamu Togao, Akio Hiwatashi, Makoto Obara, Koji Yamashita, Daichi Momosaka, Ataru Nishimura, Koichi Arimura, Nobuhiro Hata, Koji Yoshimoto, Koji Iihara, Marc Van Cauteren, Hiroshi Honda, 4D ASL-based MR Angiography for Visualization of Distal Arteries and Leptomeningeal Collateral Vessels in Moyamoya Disease: A Comparison of Techniques. , Eur Radiol. , 28(11):4871-4881, 2018.11. |
| 45. |
Kazufumi Kikuchi, Akio Hiwatashi, Osamu Togao, Koji Yamashita, Ryotaro Kamei, Koji Yoshimoto, Koji Iihara, Satoshi O Suzuki, Toru Iwaki, Yuriko Suzuki, Hiroshi Honda, Arterial spin-labeling is useful for the diagnosis of residual or recurrent meningiomas. , Eur Radiol. , 28(10):4334-4342, 2018.10. |
| 46. |
Yoshikazu Kikuchi, Toshiro Umezaki, Taira Uehara, Hiroo Yamaguchi, Koji Yamashita, Akio Hiwatashi, Motohiro Sawatsubashi, Kazuo Adachi, Yumi Yamaguchi, Daisuke Murakami, Jun-Ichi Kira, Takashi Nakagawa, A case of multiple system atrophy-parkinsonian type with stuttering- and palilalia-like dysfluencies and putaminal atrophy. , J Fluency Disord. , 57:51-58, 2018.09. |
| 47. |
Osamu Togao, Hiwatashi Akio, Makoto Obara, Yamashita Koji, Ataru Nishimura, Koji Iihara, Marc Van Cauteren, Hiroshi Honda, Acceleration-Selective Arterial Spin Labeling MR Angiography for Visualizations of Distal Cerebral Arteries and Collateral Vessels in Moyamoya Disease., Radiology, 2018.07. |
| 48. |
Noriaki Wada, Yamashita Koji, Hiwatashi Akio, Osamu Togao, Daichi Momosaka, Takuya Matsushita, Ryo Yamasaki, Keiichiro Iida, Yuichi Yamada, Jun-ichi Kira, Hiroshi Honda, Calcium Pyrophosphate Dihydrate Crystal Deposition Disease of the Spinal Dura Mater: A Case Report. , BJR Case Rep., 2018.07. |
| 49. |
O Togao, A Hiwatashi, T Wada, K Yamashita, K Kikuchi, C Tokunaga, J Keupp, M Yoneyama, H Honda, Qualitative and Quantitative Correlation Study of Lumbar Intervertebral Disc Degeneration Using Glycosaminoglycan Chemical Exchange Saturation Transfer, Pfirrmann Grade, and T1-ρ. , AJNR Am J Neuroradiol , 39(7):1369-1375, 2018.07. |
| 50. |
A Hiwatashi, O Togao, K Yamashita, K Kikuchi, D Momosaka, H Honda, Diffusion-weighted magnetic resonance imaging of extraocular muscles in patients with Grave’s ophthalmopathy using turbo field echo with diffusion-sensitized driven-equilibrium preparation., Diagn Interv Imaging., 99(7-8):457-463, 2018.07. |
| 51. |
Kikuchi Y, Hiwatashi A, Togao O, Yamashita K, Momosaka D, Honda H. , Cerebral syphilitic gumma mimicking glioma: Utility of CT perfusion. , Diagn Interv Imaging. , S2211-5684(18)30143-8. , 2018.06. |
| 52. |
Osamu Togao, Akio Hiwatashi, Koji Yamashita, Kazufumi Kikuchi, Daichi Momosaka, Koji Yoshimoto, Daisuke Kuga, Masahiro Mizoguchi, Satoshi O Suzuki, Toru Iwaki, Marc Van Cauteren, Koji Iihara, Hiroshi Honda, Measurement of the perfusion fraction in brain tumors with intravoxel incoherent motion MR imaging: validation with histopathologic vascular density in meningiomas. , Br J Radiol. , 91(1085):20170912., 2018.05. |
| 53. |
Kazufumi Kikuchi, Akio Hiwatashi, Osamu Togao, Koji Yamashita, Ryotaro Kamei, Mika Kitajima, Masafumi Kanoto, Hiroto Takahashi, Yusuke Uchiyama, Masafumi Harada, Yuki Shinohara, Takashi Yoshiura, Yuki Wakata, Hiroshi Honda, Usefulness of perfusion- and diffusion-weighted imaging to differentiate between pilocytic astrocytomas and high-grade gliomas: a multicenter study in Japan. , Neuroradiology. , 60(4):391-401, 2018.04. |
| 54. |
Kazufumi Kikuchi, Hiwatashi Akio, Osamu Togao, Yamashita Koji, Hiroo Yamaguchi, Jun-ichi Kira, Hiroshi Honda, Structural Changes in Parkinson’s Disease. Voxel-Based Morphometry and Diffusion Tensor Imaging Analyses Based on 123I-MIBG Uptake, Eur Radiol., 2018.02. |
| 55. |
Akio Hiwatashi, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Ryotaro Kamei, Hiroshi Yoshikawa, Atsushi Takemura, Hiroshi Honda, Diffusivity of Intraorbital Lymphoma vs. Inflammation: Comparison of Single Shot Turbo Spin Echo and Multishot Echo Planar Imaging Techniques. , Eur Radiol. , 28(1):325-330, 2018.01. |
| 56. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, hiroshi yoshikawa, Makoto Obara, Hiroshi Honda, High Resolution Diffusion-Weighted Imaging for Solitary Orbital Tumors: 3D Turbo Field Echo with Diffusion-Sensitized Driven-Equilibrium (DSDE-TFE) Preparation Technique. , Clin Neuroradiol., 10.1007/s00062-016-0556-6, 2017.12. |
| 57. |
Koji Yoshimoto, Ryusuke Hatae, Yuhei Sangatsuda, Satoshi O Suzuki, Nobuhiro Hata, 赤木 洋二郎, DAISUKE KUGA, Yamashita Koji, Osamu Togao, Hiwatashi Akio, Koji Iihara, Prevalence and clinicopathological features of H3.3 G34-mutant high-grade gliomas: a retrospective study of 411 glioma cases in a single institution. , Brain Tumor Pathol., 2017.12. |
| 58. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Ryotaro Kamei, Daichi Momosaka, Masami Yoneyama, 緒方 英紀, Ryo Yamasaki, Jun-ichi Kira, Hiroshi Honda, Lumbar plexus in patients with chronic inflammatory demyelinating polyneuropathy: Evaluation with 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (3D SHINKEI), Eur J Radiol, 93, 95-99, 2017.10. |
| 59. |
Shirasaka Takashi, Hiwatashi Akio, Yamashita Koji, Masatoshi Kondo, Hiroshi Honda, Optimal Scan Timing for Artery-Vein Separation at Whole-Brain CT Angiography using a 320-Row MDCT Volume Scanner., Br J Radiol., 2017.09. |
| 60. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Masatoshi Kondo, Kazufumi Kikuchi, INOGUCHI TAKASHI, Hiroshi Honda, Additive value of “Otosclerosis-weighted” images for the CT diagnosis of fenestral otosclerosis., Acta Radiol., 2017.08. |
| 61. |
Daichi Momosaka, Osamu Togao, Akio Hiwatashi, Koji Yamashita, Koji Yoshimoto, Megumu Mori, Toru Iwaki, Hiroshi Honda, Spindle cell/sclerosing rhabdomyosarcoma with intracranial invasion without destroying the bone of the skull base: A case report and literature review. , Acta Radiol Open. , 6(8):2058460117727316, 2017.08. |
| 62. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Masami Yoneyama, Hidenori Ogata, Ryo Yamasaki, Jun-ichi Kira, Hiroshi Honda, Evaluation of chronic inflammatory demyelinating polyneuropathy: 3D nerve-sheath signal increased with inked rest-tissue rapid acquisition of relaxation enhancement imaging (3D SHINKEI). , Eur Radiol., 2017.03. |
| 63. |
Kazufumi Kikuchi, Akio Hiwatashi, Osamu Togao, Koji Yamashita, Koji Yoshimoto, Masahiro Mizoguchi, Satoshi O Suzuki, Toru Iwaki, Yuriko Suzuki, Hiroshi Honda, Correlation between Arterial Spin-Labeling Perfusion and Histopathologic Vascular Density of Pediatric Brain Tumors. J Neurooncol. , J Neurooncol. , 135(3):561-569, 2017.03. |
| 64. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Hiroo Yamaguchi, Ryotaro Kamei, Ryo Yamasaki, Jun-ichi Kira, Hiroshi Honda, Cerebral Blood Flow Laterality Derived from Arterial Spin Labeling as a Biomarker for Assessing the Disease Severity of Parkinson’s Disease., J Magn Reson Imaging., 2016.12. |
| 65. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, hiroshi yoshikawa, Makoto Obara, Hiroshi Honda, 3D Turbo Field Echo with Diffusion-Sensitized Driven-Equilibrium Preparation Technique (DSDE-TFE) versus Echo Planar Imaging in Evaluation of Diffusivity of Retinoblastoma., Br J Radiol., 2016.12. |
| 66. |
Osamu Togao, Keupp Jochen, Hiwatashi Akio, Yamashita Koji, Kazufumi Kikuchi, Masami Yoneyama, Hiroshi Honda, Amide Proton Transfer Imaging of Brain Tumors using a Self-corrected 3D Fast Spin-Echo Dixon Method: Comparison with Separate B0 Correction. , Magn Reson Med, 2016.12. |
| 67. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Jyunki Maehara, Kazufumi Kikuchi, Yoshihiro Matsumoto, Yoshinao Oda, Kunio Iura, Hiroshi Honda, Primary Phosphaturic Mesenchymal Tumor of the Lumbar Spine: Utility of 68Ga-DOTATOC PET/CT Findings., BJR Case Rep., 2016.09. |
| 68. |
Osamu Togao, Hiwatashi Akio, Jochen Keupp, Yamashita Koji, Kazufumi Kikuchi, Koji Sagiyama, Takashi Yoshiura, Hiroshi Honda, Amide Proton Transfer Imaging of Diffuse Gliomas: Effect of Saturation Pulse length in Parallel Transmission-based Technique., PLoS One. , 2016.08. |
| 69. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Yoshiyuki Kitamura, Masahiro Mizoguchi, Koji Yoshimoto, DAISUKE KUGA, Satoshi O Suzuki, Shingo Baba, TAKURO ISODA, Toru Iwaki, Koji Iihara, Hiroshi Honda, Diagnostic Utility of Intravoxel Incoherent Motion MR imaging in Differentiating Primary Central Nervous System Lymphoma from Glioblastoma Multiforme., J Magn Reson Imaging., 2016.06. |
| 70. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Hiroshi Honda, Evaluation of Diffusivity in pituitary adenoma: 3D Turbo Field Echo with Diffusion-Sensitized Driven-Equilibrium Preparation, Br J Radiol. , 2016.06. |
| 71. |
Noguchi Tomoyuki, Yakushiji Yusuke, Masahi Nishihara, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Hiroyuki Irie, Arterial Spin-labeling in Central Nervous system Infection., Magn Reson Med Sci., http://doi.org/10.2463/mrms.mp.2015-0140, 2016.05. |
| 72. |
Osamu Togao, Hiwatashi Akio, Yamashita Koji, Kazufumi Kikuchi, Jochen Keupp, Koji Yoshimoto, Satoshi O Suzuki, Koji Iihara, Hiroshi Honda, Grading diffuse gliomas without intense contrast enhancement by amide proton transfer MR imaging: comparisons with diffusion- and perfusion-weighted imaging., Eur Radiol., 2016.05. |
| 73. |
Yamashita Koji, Kondo Masatoshi, Hiwatashi Akio, Osamu Togao, Kikuchi Kazufumi, Hiroshi Sugimori, Hiroshi Honda, Prognostic utility of CT histogram analysis in patients with post-cardiac arrest syndrome: evaluation using an automated whole-brain extraction algorithm., J Comput Assist Tomogr, 2016.03. |
| 74. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kikuchi Kazufumi, Koji Yoshimoto, Masahiro Mizoguchi, Satoshi O Suzuki, Hiroshi Honda, Evaluation of glioblastomas and lymphomas with whole-brain CT perfusion: Comparison between a delay-invariant singular-value decomposition algorithm and a Patlak plot., J Neuroradiol., 2016.02. |
| 75. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Koji Yoshimoto, Satoshi O Suzuki, Hiroshi Honda, MR imaging Based Analysis of Glioblastoma multiforme: Estimation of IDH1 Mutation Status., AJNR Am J Neuroradiol., 37, 1, 58-65, 37(1):58-65, 2016.01, BACKGROUND AND PURPOSE: Glioblastoma multiforme is highly aggressive and the most common type of primary malignant brain tumor in adults. Imaging biomarkers may provide prognostic information for patients with this condition. Patients with glioma with isocitrate dehydrogenase 1 (IDH1) mutations have a better clinical outcome than those without such mutations. Our purpose was to investigate whether the IDH1 mutation status in glioblastoma multiforme can be predicted by using MR imaging.
MATERIALS AND METHODS: We retrospectively studied 55 patients with glioblastoma multiforme with wild type IDH1 and 11 patients with mutant IDH1. Absolute tumor blood flow and relative tumor blood flow within the enhancing portion of each tumor were measured by using arterial spin-labeling data. In addition, the maximum necrosis area, the percentage of cross-sectional necrosis area inside the enhancing lesions, and the minimum and mean apparent diffusion coefficients were obtained from contrast-enhanced T1-weighted images and diffusion-weighted imaging data. Each of the 6 parameters was compared between patients with wild type IDH1 and mutant IDH1 by using the Mann-Whitney U test. The performance in discriminating between the 2 entities was evaluated by using receiver operating characteristic analysis.
RESULTS: Absolute tumor blood flow, relative tumor blood flow, necrosis area, and percentage of cross-sectional necrosis area inside the enhancing lesion were significantly higher in patients with wild type IDH1 than in those with mutant IDH1 (P
CONCLUSIONS: Tumor blood flow and necrosis area calculated from MR imaging are useful for predicting the IDH1 mutation status.. |
| 76. |
Osamu Togao, Hiwatashi Akio, Yamashita Koji, Kazufumi Kikuchi, Koji Yoshimoto, Satoshi O Suzuki, Hiroshi Honda, Differentiation of high-grade and low-grade diffuse gliomas by intravoxel incoherent motion MR imaging. , Neuro Oncol., 18, 1, 132-141, 2016.01. |
| 77. |
Kondo Masatoshi, Yamashita Koji, Takashi Yoshiura, Shirasaka Takashi, Arimura hisao, Nakamura Yasuhiko, Hiroshi Honda, Histogram Analysis for Performance Assessment of Automated Extraction of Brain-Tissue Region from Whole-Brain CT Images., Springerplus, 2015.12. |
| 78. |
Tahara Keiichiro, Yamashita Koji, Hiwatashi Akio, Osamu Togao, Kikuchi Kazufumi, Makoto Endo, Hiroshi Honda, MR imaging findings of a leiomyosarcoma of the thoracic spine: A case report., Clin Neuroradiol., 2015.10. |
| 79. |
Osamu Togao, Hiwatashi Akio, Keupp Jochen, Yamashita Koji, Kikuchi Kazufumi, Suzuki Yuriko, Hiroshi Honda, Scan-rescan reproducibility of parallel transmission based amide proton transfer imaging of brain tumors., J Magn Reson Imaging., 10.1002/jmri.24895., 2015.05. |
| 80. |
KIMIAKI HASHIGUCHI, Seiichi Morokuma, Hiwatashi Akio, Yamashita Koji, Koji Iihara, Clinical significance of prenatal and postnatal heavily T2-weighted magnetic resonance images in patients with myelomeningocele., Pediatric neurosurgery, 2015.05. |
| 81. |
Kazufumi Kikuchi, Hiwatashi Akio, Osamu Togao, Yamashita Koji, Masami Yoneyama, Makoto Obara, Takashi Yoshiura, Hiroshi Honda, 3D MR Sequence Capable of Simultaneous Image Acquisitions with and without Blood Vessel Suppression: Utility in Diagnosing Brain Metastases., Eur Radiol. , 2015.04. |
| 82. |
Yuka Otera, YASUO YUMOTO, Masayuki Ochiai, Yamashita Koji, Prenatal Diagnosis of Periventricular Venous Infarction in Utero., Case Rep. Perinat. Med., 2015.04. |
| 83. |
Yamashita Koji, Takashi Yoshiura, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Takashi inoguchi, Seiji Kumazawa, Hiroshi Honda, The Radiological Diagnosis of Fenestral Otosclerosis: the Utility of Histogram Analysis using Multidetector row CT. , Eur Arch Otorhinolaryngol., 271, 12, 3277-3282, 2014.12. |
| 84. |
Yamashita Koji, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Nozomu Matsumoto, Hiroshi Honda, High-resolution three-dimensional diffusion-weighted MRI / CT image data fusion for cholesteatoma surgical planning: a feasibility study. , Eur Arch Otorhinolaryngol. , 2014.12. |
| 85. |
Ryuji Uehara, Yamashita Koji, Hiwatashi Akio, Osamu Togao, Jun Yokoyama, Dai Matsuse, Takashi Yoshiura, Hiroshi Honda, Intravoxel incoherent motion magnetic resonance imaging findings in the acute phase of MELAS: a case report. , Brain Behav., 4, 6, 798-800, 2014.11. |
| 86. |
Osamu Togao, Hiwatashi Akio, Yamashita Koji, kazufumi kikuchi, Takashi Yoshiura, Hiroshi Honda, Additional MR contrast dosage for radiologists' diagnostic performance in detecting brain metastases: a systematic observer study at 3 T. , Jpn J Radiol., 32, 9, 537-544, 2014.09. |
| 87. |
kazufumi kikuchi, Takashi Yoshiura, Hiwatashi Akio, Osamu Togao, Yamashita Koji, Hiroshi Honda, Balloon test occlusion of internal carotid artery: Angiographic findings predictive of results. , World J Radiol. , 6, 8, 619-624, 2014.08. |
| 88. |
Osamu Togao, Takashi Yoshiura, Hiwatashi Akio, Yamashita Koji, Kazufumi Kikuchi, Koji Yoshimoto, Masahiro Mizoguchi, Hiroshi Honda, Amide proton transfer imaging of adult diffuse gliomas: correlation with histopathological grades. , Neuro Oncol., 16, 3, 441-448, 2014.03. |
| 89. |
Hiwatashi Akio, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Takashi Yoshiura, Hiroshi Honda, Diffusivity of intraorbital lymphoma vs. IgG4-related DISEASE: 3D turbo field echo with diffusion-sensitised driven-equilibrium preparation technique., Eur Radiol, 24, 3, 581-586, 2014.03. |
| 90. |
Hiwatashi Akio, Takashi Yoshiura, Osamu Togao, Yamashita Koji, Hiroshi Honda, Kazufumi Kikuchi, Evaluation of Diffusivity in the Anterior Lobe of the Pituitary Gland: 3D Turbo Field Echo with Diffusion-Sensitized Driven-Equilibrium Preparation., AJNR Am J Neuroradiol, 2014.01. |
| 91. |
Yuichiro Kikkawa, Akira Nakamizo, Yamashita Koji, Preoperative Evaluation and surgical Strategies for Craniocervical Junction Dural Arteriovenous Fistula with Multiple Feeders: Case report and Review of the Literature., Fukuoka Igaku Zasshi., 104, 9, 299-308, 2013.09. |
| 92. |
Yamashita Koji, Takashi Yoshiura, Hiwatashi Akio, Osamu Togao, Kazufumi Kikuchi, Makoto Obara, Nozomu Matsumoto, Hiroshi Honda, High-resolution Three-dimensional Diffusion-weighted Imaging of Middle Ear Cholesteatoma at 3.0 T MRI: Usefulness of 3D Turbo Field-echo with Diffusion-Sensitized Driven-equilibrium Preparation (TFE-DSDE) Compared to Single-shot Echo-planar Imaging., Eur J Radiol., pii: S0720-048X(13)00214-3. 10.1016/j.ejrad.2013.04.018. , 82, 9, 471-475, 2013.09, Objective: To prospectively evaluate the usefulness of a newly developed high-resolution three-dimensional diffusion-weighted imaging method, turbo field-echo with diffusion-sensitized driven-equilibrium (TFE–DSDE) in diagnosing middle-ear cholesteatoma by comparing it to conventionalsingle-shot echo-planar diffusion-weighted imaging (SS-EP DWI).Materials and methods: Institutional review board approval and informed consent from all participantswere obtained. We studied 30 patients with preoperatively suspected acquired cholesteatoma. Eachpatient underwent an MR examination including both SS-EP DWI and DSDE-TFE using a 3.0 T MR scan-ner. Images of the 30 patients (60 temporal bones including 30 with and 30 without cholesteatoma) werereviewed by two independent neuroradiologists. The confidence level for the presence of cholesteatomawas graded on a scale of 0–2 (0 = definite absence, 1 = equivocal, 2 = definite presence). Interobserveragreement as well as sensitivity, specificity, and accuracy for detection were assessed for the two review-ers.Results: Excellent interobserver agreement was shown for TFE–DSDE ( = 0.821) whereas fair agreementwas obtained for SS-EP DWI ( = 0.416). TFE–DSDE was associated with significantly higher sensitivity(83.3%) and accuracy (90.0%) compared to SS-EP DWI (sensitivity = 35.0%, accuracy = 66.7%; p |
| 93. |
Hidenari Hirata, Hiwatashi Akio, Takashi Yoshiura, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Hiroshi Honda, Resolution of epidural hematoma related to osteoporotic fracture after percutaneous vertebroplasty. , World J Radiol., 5, 8, 325-327, 2013.08. |
| 94. |
Fumiko Kanzaki, Hiwatashi Akio, Takashi Yoshiura, Osamu Togao, Yamashita Koji, Kazufumi Kikuchi, Hiroshi Honda, Minute Subsequent Fracture at Prophylactically Treated Adjacent Vertebra After Percutaneous Vertebroplasty., Clin Neuroradiol., 2013.08. |
| 95. |
Yamashita K, Yoshiura T, Hiwatashi A, Togao O, Yoshimoto K, Suzuki SO, Abe K, Kikuchi K, Maruoka Y, Mizoguchi M, Iwaki T, Honda H, Differentiating primary central nervous system lymphoma from glioblastoma multiforme: assessment using arterial spin labeling, diffusion weighted imaging, and 18F-fluorodeoxyglucose positron emission tomography., Neuroradiology, 55, 2, 135-143, 2013.02, Introduction: Our purpose was to evaluate the diagnostic performance of arterial spin labeling (ASL) perfusion imaging, diffusion-weighted imaging (DWI), and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) in differentiating primary central nervous system lymphomas (PCNSLs) from glioblastoma multiformes (GBMs). Methods: Fifty-six patients including 19 with PCNSL and 37 with GBM were retrospectively studied. From the ASL data, an absolute tumor blood flow (aTBF) and a relative tumor blood flow (rTBF) were obtained within the enhancing portion of each tumor. In addition, the minimum apparent diffusion coefficient (ADCmin) and the maximum standard uptake value (SUVmax) were obtained from DWI and FDG-PET data, respectively. Each of the four parameters was compared between PCNSLs and GBMs using Kruskal–Wallis test. The performance in discriminating between PCNSLs and GBMs was evaluated using the receiver-operating characteristics analysis. Area-under-the curve (AUC) values were compared among the four parameters using a nonparametric method.
Results: The aTBF, rTBF, and ADCmin were significantly higher in GBMs (mean aTBF ± SD = 91.6±56.0 mL/100 g/ min, mean rTBF ± SD = 2.61±1.61, mean ADCmin ± SD = 0.78±0.19×10^−3 mm^2/s) than in PCNSLs (mean aTBF ± SD = 37.3±10.5 mL/100 g/min, mean rTBF ± SD = 1.24±0.37, mean ADCmin ± SD = 0.61±0.13×10^−3 mm^2/s) (plower in GBMs (mean ± SD = 13.1±6.34) than in PCNSLs (mean ± SD = 22.5±7.83) (pConclusion: ASL perfusion imaging is useful for differentiating PCNSLs from GBMs as well as DWI and FDG-PET.. |
| 96. |
Kamano H, Yoshiura T, Hiwatashi A, Abe K, Togao O, Yamashita K, Honda H., Arterial spin labeling in patients with chronic cerebral artery steno-occlusive disease: correlation with 15O-PET., Acta Radiol., 2012.10. |
| 97. |
Hiwatashi A, Yoshiura T, Yamashita K, Kamano H, Honda H, High-Resolution STIR for 3-T MRI of the Posterior Fossa: Visualization of the Lower Cranial Nerves and Arteriovenous Structures Related to Neurovascular Compression., AJR Am J Roentgenol., 199, 3, 644-648, 2012.09. |
| 98. |
Yamashita K, Yoshiura T, Hiwatashi A, Togao O, Yoshimoto K, Suzuki SO, Kikuchi K, Mizoguchi M, Iwaki T, Honda H., Arterial spin labeling of hemangioblastoma: differentiation from metastatic brain tumors based on quantitative blood flow measurement., Neuroradiology, 2012.08. |
| 99. |
Yamashita K, Yoshiura T, Hiwatashi A, Kamano H, Honda H., Ultrashort echo time imaging of middle ear ossicles: a feasibility study., Dentomaxillofac Radiol., 2012.06. |
| 100. |
Dashjamts T, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Ohyagi Y, Monji A, Kamano H, Kawashima T, Kira J, Honda H., Alzheimer's disease: diagnosis by different methods of voxel-based morphometry., Fukuoka Igaku Zasshi., 2012.03. |
| 101. |
Sugimori H, Kanna T, Yamashita K, Kuwashiro T, Yoshiura T, Zaitsu A, Hashizume M., Early Findings on Brain Computed Tomography and the Prognosis of Post Cardiac Arrest Syndrome: Application of the Score for Stroke Patients. , Resuscitation, 2012.01. |
| 102. |
Noguchi T, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Nagao E, Honda H., Arterial spin-labeling magnetic resonance imaging: the timing of regional maximal perfusion-related signal intensity revealed by a multiphase technique., Jpn J Radiol. , 2011.12. |
| 103. |
Dashjamts T, Yoshiura T, Hiwatashi A, Yamashita K, Monji A, Ohyagi Y, Kamano H, Kawashima T, Kira J, Honda H., Simultaneous arterial spin labeling cerebral blood flow and morphological assessments for detection of Alzheimer's disease., Acad Radiol., 18, 12, 1492-1499, 2011.12. |
| 104. |
Yamashita K, Yoshiura T, Hiwatashi A, Kamano H, Dashjamts T, Shibata S, Tamae A, Honda H., Detection of Middle Ear Cholesteatoma by Diffusion-Weighted MR Imaging: Multishot Echo-Planar Imaging Compared with Single-Shot Echo-Planar Imaging., AJNR Am J Neuroradiol., 32, 10, 1915-1918, 2011.11. |
| 105. |
Kamano H, Yoshiura T, Hiwatashi A, Yamashita K, Takayama Y, Nagao E, Sagiyama K, Zimine I, Honda H., Accelerated territorial arterial spin labeling based on shared rotating control acquisition: an observer study for validation., Neuroradiology. , 2011.07. |
| 106. |
Yamashita K, Yoshiura T, Hiwatashi A, Tuvshinjargal D, Kamano H, Shiratsuchi H, Honda H., Contributing Factors in the Pathogenesis of Acquired Cholesteatoma: Size Analysis Based on MDCT., AJR Am J Roentgenol., 196, 5, 1172-1175, 2011.05. |
| 107. |
Nagao E, Yoshiura T, Hiwatashi A, Obara M, Yamashita K, Kamano H, Takayama Y, Kobayashi K, Honda H, Three-dimensional turbo spin-echo sequence with motion-sensitized driven-equilibrium preparation for detection of brain metastases on 3-Tesla magnetic resonance image, AJNR Am J Neuroradiol, 32, 4, 664-670, 2011.04. |
| 108. |
Yamashita K, Yoshiura T, Hiwatashi A, Dashjamts T, Kamano H, Inoguchi T, Honda H., Sensorineural hearing loss: There is no correlation with isolated small lateral semicircular canal on temporal bone CT, Acta Radiologica, 52, 2, 229-233, 2011.03. |
| 109. |
Yoshiura T, Hiwatashi A, Yamashita K, Ohyagi Y, Monji A, Takayama Y, Kamano N, Kawashima T, Kira J, Honda H., Deterioration of abstract reasoning ability in mild cognitive impairment and Alzheimer's disease: correlation with regional grey matter volume loss revealed by diffeomorphic anatomical registration through exponentiated lie algebra analysis., Eur Radiol, 21, 2, 419-425, 2011.02. |
| 110. |
Yamashita K, Yoshiura T, Hiwatashi A, Noguchi T, Togao O, Takayama Y, Nagao E, Kamano H, Hatakenaka M, Honda H. , Volumetric Asymmetry and Differential Aging Effect of the Human Caudate Nucleus in Normal Individuals: A Prospective MR Imaging Study., J Neuroimaging., 21, 1, 34-37, 2011.01. |
| 111. |
Shirakawa Y, Yoshiura T, Hiwatashi A, Yamashita K, Kamano H, Shioyama Y, Abe K, Amano T, Nakamizo A, Yoshimoto K, Honda H, Torisu R, Suzuki S, Honda H., Pseudoprogression following concurrent temozolomide and radiotherapy in a patient with glioblastoma: findings on functional imaging techniques. , Fukuoka Igaku Zasshi, 101, 12, 257-264, 2010.12. |
| 112. |
Hiwatashi A, Yoshiura T, Yamashita K, Kamano H, Honda H, Ultrashort TE MRI: Usefulness after percutaneous vertebroplasty., AJR Am J Roentgenol, 195, 5, 365-368, 2010.11. |
| 113. |
Togao O, Yoshiura T, Nakao T, Nabeyama M, Sanematsu H, Nakagawa A, Noguchi T, Hiwatashi A, Yamashita K, Nagao E, Kanba S, Honda H., Regional gray and white matter volume abnormalities in obsessive-compulsive disorder: A voxel-based morphometry study. , Psychiatry Res. , 184, 1, 29-37, 2010.10. |
| 114. |
Hiwatashi A, Yoshiura T, Yamashita K, Kamano H, Dashjamts T, Honda H. , Morphologic change in vertebral body after percutaneous vertebroplasty: follow-up with MDCT. AJR Am J Roentgenol, AJR Am J Roentgenol, 195, 3, 207-212, 2010.09. |
| 115. |
Nagao E, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Kamano H, Mizoguchi M, Amano T, Honda H., A case of giant cell glioblastoma: a mimicker of a cerebral metastasis., Fukuoka Igaku Zasshi, 101, 7, 142-147, 2010.07. |
| 116. |
Noguchi T, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Nagao E, Uchino A, Hasuo K, Atsumi K, Matsuura T, Kuroiwa T, Mihara F, Honda H, Kudo S., CT and MRI Findings of Human Herpesvirus 6-Associated Encephalopathy: Comparison With Findings of Herpes Simplex Virus Encephalitis., Am J Roentgenol. , 194, 3, 754-760, 2010.03. |
| 117. |
Yoshiura T, Noguchi T, Hiwatashi A, Togao O, Yamashita K, Nagao E, Kamano H, Honda H., Intra- and interhemispheric variations of diffusivity in subcortical white matter in normal human brain, Eur Radiol. , 20, 1, 227-233, 2010.01. |
| 118. |
Dashjamts T, Yoshiura T, Hiwatashi A, Yamashita K, Abe K, Ohyagi Y, Kira J, Honda H., Asymmetrical cerebral perfusion demonstrated by noninvasive arterial spin-labeling perfusion imaging in a patient with corticobasal degeneration., Jpn J Radiol, 28, 1, 75-78, 2010.01. |
| 119. |
Hiwatashi A, Yoshiura T, Yamashita K, Kamano H, Dashjamts T, Honda H. , Subsequent Fracture after Percutaneous Vertebroplasty Can Be Predicted on Preoperative Multidetector Row CT, Am J Neuroradiol. , 30, 10, 1830-1834, 2009.11. |
| 120. |
Yoshiura T, Noguchi T, Hiwatashi A, Togao O, Yamashita K, Nakao T, Nagao E, Kumazawa S, Arimura H, Honda H, Age-related microstructural changes in subcortical white matter during postadolescent periods in men revealed by diffusion-weighted MR imaging, Hum Brain Mapp., 30, 10, 3142-3150, 2009.10. |
| 121. |
Yoshiura T, Hiwatashi A, Yamashita K, Ohyagi Y, Monji A, Takayama Y, Nagao E, Kamano H, Noguchi T, Honda H., Simultaneous Measurement of Arterial Transit Time, Arterial Blood Volume, and Cerebral Blood Flow Using Arterial Spin-Labeling in Patients with Alzheimer Disease, Am J Neuroradiol, 30, 7, 1388-1393, 2009.08. |
| 122. |
Yoshiura T, Hiwatashi A, Noguchi T, Yamashita K, Ohyagi Y, Monji A, Nagao E, Kamano H, Togao O, Honda H. , Arterial spin labelling at 3-T MR imaging for detection of individuals with Alzheimer's disease, Eur Radiol., 19, 12, 2819-2825, 2009.07. |
| 123. |
Hiwatashi A, Westesson PL, Yoshiura T, Noguchi T, Togao O, Yamashita K, Kamano H, Honda H., Kyphoplasty and Vertebroplasty Produce the Same Degree of Height Restoration, Am J Neuroradiol., 30, 4, 669-673, 2009.04. |
| 124. |
Yoshiko Tashima, Akio Hiwatashi, Takashi Yoshiura, Tomoyuki Noguchi, Osamu Togao, Koji Yamashita, Hiroshi Honda, Early subsequent fracture after percutaneous vertebroplasty proven by magnetic resonance imaging., European Journal of Radiology Extra, 68, 2, e93-e95, 2008.12. |
| 125. |
Hiwatashi A, Westesson PL, Yoshiura T, Noguchi T, Togao O, Yamashita K, Kamano H, Honda H., Usefulness of cone-beam CT before and after percutaneous vertebroplasty., Am J Roentgenol., 191, 5, 1401-1405, 2008.11. |
| 126. |
Hiwatashi A, Matsushima T, Yoshiura T, Tanaka A, Noguchi T, Togao O, Yamashita K, Honda H., MRI of glossopharyngeal neuralgia caused by neurovascular compression, Am J Roentgenol., 191, 2, 578-581, 2008.08. |
| 127. |
Yamashita K, Yoshiura T, Arimura H, Mihara F, Noguchi T, Hiwatashi A, Togao O, Yamashita Y, Shono T, Kumazawa S, Higashida Y, Honda H, Performance evaluation of radiologists with artificial neural network for differential diagnosis of intra-axial cerebral tumors on MR images, Am J Neuroradiol., 2008.06. |
| 128. |
Togao O, Yoshiura T, Mihara F, Noguchi T, Hiwatashi A, Yamashita K, Yoshitake T, Honda H., Cortical thickness difference across the central sulcus visualized in the presence of vasogenic edema, Eur J Radiol. , 66, 2, 274-281, 2008.05. |
| 129. |
Noguchi T, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Nagao E, Shono T, Mizoguchi M, Nagata S, Sasaki T, Suzuki SO, Iwaki T, Kobayashi K, Mihara F, Honda H., Perfusion imaging of brain tumors using arterial spin-labeling: correlation with histopathologic vascular density, Am J Neuroradiol., 29, 4, 688-693, 2008.04. |
| 130. |
Yoshiura T, Noguchi T, Koga H, Ohyagi Y, Hiwatashi A, Togao O, Yamashita K, Kumazawa S, Mihara F, Honda H., Cortical damage in Alzheimer's disease estimation in medial and lateral aspects of the cerebrum using an improved mapping method based on diffusion-weighted magnetic resonance imaging, Acad Radiol, 15, 2, 193-200, 2008.02. |
| 131. |
Hiwatashi Akio, Takashi Yoshiura, Noguchi Tomoyuki, Osamu Togao, Yamashita Koji, Hiroshi Honda, Percutaneous vertebroplasty, 98, 9, 337-345, 2007.09. |
| 132. |
Noguchi T, Yoshiura T, Oguri S, Hiwatashi A, Togao O, Yamashita K, Nagao E, Murakami J, Mihara F, Honda H., Intraarterial therapy for acute ischemic stroke: investigation of prognostic factors, Fukuoka Igaku Zasshi., 98, 8, 320-328, 2007.08. |
| 133. |
Noguchi T, Yoshiura T, Hiwatashi A, Togao O, Yamashita K, Kobayashi K, Mihara F, Honda H., Quantitative perfusion imaging with pulsed arterial spin labeling: a phantom study, Magn Reson Med Sci., 6, 2, 91-97, 2007.02. |
| 134. |
Yamashita K, Noguchi T, Mihara F, Yoshiura T, Togao O, Yoshikawa H, Honda H , An intraorbital wooden foreign body: description of a case and a variety of CT appearances., Emerg Radiol., 12, 1, 41-43, 2007.01. |
| 135. |
Yamashita K, Shinozaki K, Kunitake N, Matsumoto S, Matsuura H, Nakashima A., Cystadenoma of the liver with ovarian-like stroma: case report, Abdom Imaging., 30, 6, 741-743, 2005.11. |
