九州大学-研究者情報 [鶴丸大介 (講師) 九州大学病院放射線科]

DAISUKE TSURUMARU, MITSUTOSHI MIYASAKA, YUSUKE NISHIMUTA, Asayama Yoshiki, Akihiro Nishie, Satoshi Kawanami, Minako Hirahashi, Eiji Oki, Hiroshi Honda, Differentiation of Early Gastric Cancer with Ulceration and Resectable Advanced Gastric Cancer using Multiphasic Dynamic Multidetector CT, European Radiology, 10.1007/s00330-015-3938-2, 2016.05, OBJECTIVES: Early gastric cancer with ulceration (EGC-U) mimics advanced gastric cancer (AGC), as EGC-Us and ACGs often have similar endoscopic appearance to ulceration. The purpose of this retrospective study was to determine whether multiphasic dynamic multidetector CT (MDCT) can help differentiate EGC-Us from AGCs.
METHODS: Patients with EGC-Us with ulcer stages Ul-III or IV and AGCs with tumour stages T2 to T4a were enrolled. MDCT images were obtained 40 s (arterial phase), 70 s (portal phase) and 240 s (delayed phase) after injection of non-ionic contrast material. Two readers independently measured the attenuation values of the lesions by placing regions of interest. We compared the EGC-Us and AGCs using the mean attenuation values in each phase and peak enhancement phase. We analysed the diagnostic performance of CT for differentiating EGC-Us from AGCs.
RESULTS: Forty cases (16 EGC-Us and 24 AGCs) were analysed. The mean attenuation values of the EGC-Us were significantly lower than those of the AGCs in both the arterial and portal phases (all p CONCLUSION: Multiphasic dynamic contrast-enhanced MDCT can help differentiate EGC-Us from AGCs..

主要総説, 論評, 解説, 書評, 報告書等

全てを見る→

1.	鶴丸大介、甲斐聖広、西牟田雄祐、石神康生, CT、MRI, 最新臨床大腸癌2023, 2023.06.
2.	鶴丸大介、西牟田雄祐、甲斐聖広、高津憲之、宮坂光俊、村木俊夫、上田真信、伊牟田真功、林奈留美、三宅基隆、森一宏、前田和弘、石神康生, CT colonographyの最前線　大腸腫瘍診療の最前線, 胃と腸　57巻4号, 2022.08.

主要学会発表等

全てを見る→

1.	鶴丸大介、甲斐聖広、西牟田雄祐, CT colonographyを用いた早期大腸癌の深達度診断に関する検討, 第105回日本消化器内視鏡学会総会, 2023.05.
2.	Daisuke Tsurumaru, Noriyuki Takatsu, Satohiro Kai, Kousei Ishigami, Clinical significance of spectral CT parameters in differentiating small-sized gastric submucosal tumors, 第81回日本医学放射線学会総会, 2022.04.
3.	Daisuke Tsurumaru, Noriyuki Takatsu, Satohiro Kai, Eiji Oki, Kousei Ishigami, CT of gastric cancer: Should the radiologist only point out wall thickening of the stomach?, 第80回日本医学放射線学会総会, 2021.04.
4.	Daisuke Tsurumaru, Yusuke Nishimuta, Toshio Muraki, Yoshiki Asayama, Hiroshi Honda, CT Gastrography for Gastric Tumors: What is the Current Role, RSNA 2019, 2018.11.
5.	Daisuke Tsurumaru, Yusuke Nishimuta, Toshio Muraki, Yoshiki Asayama, Hiroshi Honda, Prediction of gastric cancer with synchronous hepatic metastasis by enhancement pattern of primary lesion using multiphasic contrast-enhanced computed tomography, European Congress of Radiology 2018, 2018.03, Purpose: To examine contrast-enhanced computed tomography (CECT) features of primary site of gastric cancers with synchronous hepatic metastasis. Methods and Materials: One hundred eleven consecutive patients with pathologically proven advanced gastric cancers who were evaluated with CECT were enrolled. CT images were obtained 40s (arterial phase), 70s (portal phase) and 240s (delayed phase) after injection of nonionic contrast material. Eleven patients were diagnosed having hepatic metastasis at the time of diagnosis. Two radiologists in consensus determined the “peak enhancement phase” in which the lesion showed the highest attenuation value among the three phases for each case. The readers traced the entire tumor as the region of interest (ROI) of the gastric lesion, and measured the CT attenuation value for each phase. We compared the peak enhancement phase of positive hepatic metastasis group (n=11) and negative hepatic metastasis group (n=100) using Chi-square tests, and compared the CT attenuation values of the two groups in each phase using analysis of variance (ANOVA). Results: The peak enhancement was significantly different between the two groups (p=0.0007); most of the positive hepatic metastasis cases had peak enhancement in the arterial phase. The CT attenuation values of positive hepatic metastasis cases were significantly lower than those of negative hepatic metastasis cases in the delayed phase. Conclusion: Hepatic metastasis of gastric cancer may be predictable according to enhancement pattern of primary lesion on multiphasic CECT..
6.	DAISUKE TSURUMARU, MITSUTOSHI MIYASAKA, YUSUKE NISHIMUTA, Satoshi Kawanami, Akihiro Nishie, 浅山良樹, 平橋美奈子, Hiroshi Honda, Dynamic Contrast-Enhanced CT of Gastric Cancers: Relationship between Enhancement Pattern and Histological Type, European Congress of Radiology, 2015.03.

学会活動

所属学会名

日本CT学会

日本消化管CT技術学会

日本大腸検査学会

日本消化管Virtual Reality学会

日本消化器がん検診学会

日本医学放射線学会

日本消化器内視鏡学会

学協会役員等への就任

2024.01～2024.12, 日本医学放射線学会, 代議員、編集委員、ガイドライン編集委員.

2024.01～2024.12, 日本消化器がん検診学会　九州支部, 幹事.

2024.01～2024.12, 日本消化器がん検診学会, 大腸CT検査技師認定医員.

2023.12～2024.01, 日本消化管Virtual Reality学会, 理事.

2014.04～2017.03, 福岡地区胃集検読影研究会, 幹事.

2014.04～2017.03, 福岡消化器病研究会, 世話人.

学会大会・会議・シンポジウム等における役割

2023.07.29～2023.07.29, 第52回日本消化器がん検診学会, 座長（Chairmanship）.

2024.01.20～2024.01.20, 第 6 回日本消化管 Virtual Reality 学会　総会・学術集会, シンポジスト.

2023.04.13～2023.04.16, 第82回日本医学放射線学会総会, 座長.

2023.01.21～2023.01.21, 第 5 回日本消化管 Virtual Reality 学会　総会・学術集会, シンポジスト.

2020.09.30～2020.10.01, 第59回消化器がん検診学会総会, 実行委員.

2019.02.09～2019.02.10, 第188回日本医学放射線学会九州地方会, 座長.

2017.05.19～2017.05.20, 第103回日本消化器内視鏡学会九州支部例会, 座長（Chairmanship）.

2016.02.22～2016.02.23, JSPS Early gastric cancer camp, 座長（Chairmanship）.

2014.09.13～2014.09.13, 第44回日本消化器がん検診学会, 座長（Chairmanship）.

2014.06.14～2014.06.15, 第179回日本医学放射線学会九州地方会, 座長（Chairmanship）.

2011.06.04～2011.06.05, 第173回日本医学放射線学会九州地方会, 座長（Chairmanship）.

2012.05～2013.04, 第72回日本医学放射線学会総会, 実行委員.

学会誌・雑誌・著書の編集への参加状況

2022.04～2026.03, 画像診断ガイドライン2026年版, 国内, 編集委員.

2018.10～2024.03, Japanese Journal of Radiology, 国際, 編集委員.

2019.04～2021.03, 画像診断ガイドライン2021年版, 国内, 編集委員.

2016.04～2017.03, 画像診断ガイドライン2016年版　第２版, 国内, 編集委員.

学術論文等の審査

年度	外国語雑誌査読論文数	日本語雑誌査読論文数	合計
2023年度	18		18
2022年度	8		8
2021年度	15		15
2020年度	4		4
2019年度	6		6
2018年度	5		5
2018年度	2		2
2017年度	1		1
2016年度	2		2
2015年度	2		2
2013年度	1	1	2
2011年度	2		2
2010年度	1		0