2026-03-15T05:04:33Z https://repository.lib.tottori-u.ac.jp/oai

oai:repository.lib.tottori-u.ac.jp:00004330 2023-09-27T01:13:50Z 1:9 2:14 23:40:806:807

チョウコウソク　デンアツ　キリカエ　ホウシキ　デュアル　エネルギー　CT　オ　モチイタ　ノウ　ケッカンナイ　チリョウゴ　ノ　ガゾウ　ヒョウカ 超高速電圧切り替え方式デュアルエネルギーCTを用いた脳血管内治療後の画像評価 Imaging evaluation after neuroendovascular therapy using fast kV switching dual energy CT 篠原, 祐樹 3354 シノハラ, ユウキ 60462470 Shinohara, Yuki 久家, 圭太 1859 クヤ, ケイタ 10747637 Kuya, Keita 加藤, 亜結美 37490 カトウ, アユミ 坂本, 誠 4722 サカモト, マコト 00535304 Sakamoto, Makoto 100000367 小川, 敏英 37491 オガワ, トシヒデ Kato, Ayumi 37492 カトウ, アユミ Ogawa, Toshihide 37493 オガワ, トシヒデ iodinated contrast media metal artifact fast kV switching dual energy CT virtual monochromatic imaging metal artifact reduction software iodinated contrast media metal artifact fast kV switching dual energy CT virtual monochromatic imaging metal artifact reduction software The efficacy and safety of neuroendovascular therapy is globally recognized due to the positive results of recent randomised control trials on mechanical thrombectomy for acute embolic stroke, on carotid arterial stenting for carotid artery stenosis, on coil embolization for intracranial aneurysm, and on embolization for arteriovenous malformation or dural arteriovenous fistula. In parallel, neuroradiologists frequently encounter difficulties in the interpretation of postinterventional non-contrast enhanced CT images, as they often have high attenuated areas derived from residual iodinated contrast media and metal artifacts caused by metallic devices such as platinum-coils, surgical clips, metallic stents, and liquid embolic agents such as Onyx®. Meanwhile, fast kV switching dual energy CT （gemstone spectral imaging: GSI） is one of the advanced imaging techniques that can overcome these obstacles. For instance, material decomposition using virtual monochromatic imaging （VMI） can generate an iodine map and water （virtual non-contrast） map, which enables residual iodinated contrast media and acute hemorrhage to be distinguished. Furthermore, the use of VMI with metal artifact reduction software, MARS, can suppress severe metal artifacts, resulting in improved image quality of surrounding vessels. In this review article, we demonstrate the utility of GSI after neuroendovascular therapy using representative clinical cases. departmental bulletin paper 米子医学会 2018-03-31 VoR application/pdf 米子医学雑誌 1-2 69 25 32 The Journal of the Yonago Medical Association AN00247383 00440558 https://repository.lib.tottori-u.ac.jp/record/4330/files/jyma69(1-2)_25.pdf https://repository.lib.tottori-u.ac.jp/records/4330 jpn 篠原祐樹, 久家圭太, 加藤亜結美 他. 超高速電圧切り替え方式デュアルエネルギーCTを用いた脳血管内治療後の画像評価. 米子医学雑誌. 2018, 69(1-2), 25-32. http://mol.medicalonline.jp/library/journal/abstract?GoodsID=eb3yonai/2018/006901/004&name=0025-0032 http://mol.medicalonline.jp/library/journal/abstract?GoodsID=eb3yonai/2018/006901/004&name=0025-0032 注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.