Coronary computed tomography angiography using prospective electrocardiography-gated axial scans with 64-detector computed tomography: evaluation of stair-step artifacts and padding time期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Coronary computed tomography angiography using prospective electrocardiography-gated axial scans with 64-detector computed tomography: evaluation of stair-step artifacts and padding time

Authors:	Fumiko Kimura Tatsuo Umezawa Tomonari Asano Ruri Chihara Naoko Nishi Shigeyoshi Nishimura Fumikazu Sakai

Affiliation:	(1) Department of Medicine (Cardiology), Cardiovascular Research Institute, Washington Hospital Center, 110 Irving Street, NW, Suite 4B-1, Washington, DC 20010, USA;(2) Computed Tomography Clinical Science, Philips Healthcare, 595 Miner Road, Cleveland, OH, 44143, USA

Abstract:	Purpose We compared stair-step artifacts and radiation dose between prospective electrocardiography (ECG)-gated coronary computed tomography angiography (prospective CCTA) and retrospective CCTA using 64-detector CT and determined the optimal padding time (PT) for prospective CCTA.

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