中国医学装备2013，Vol.10Issue(2)：74-76,3.
256层CT前瞻性心电门控冠状动脉成像研究
Sudy of prospective ECG-triggered for 256-slice CT coronary artery angiography
王继芳 1姚以刚 1徐学权 1李春林 1任科研 1马天赐1
作者信息
- 1. 辽宁省铁法煤业集团总医院放射科CT室,辽宁调兵山,112700
- 折叠
摘要
Abstract
Objective: To compare the image quality and patient radiation dose between prospective ECG-triggered and retrospective ECG-gated CT coronary angiography (CTCA) by using 256-slice CT. Methods: A total of 200 patients were enrolled in this study. All patients with an average heart rate (HR) <70 bpm, 100 patients were scanned by using prospective ECG-triggered and 100 patients by retrospective ECG-gated with 256-slice CT, The image quality and the radiation dose were compared in two groups. Results: of 800 coronary artery, excellent or good image quality was achieved in 96.2°/o(385/400) in group A, 97.3°/o(389/400) in group B, with no significant difference for A vs B. The average radiation dose in group A [(2.9±0.5)mSv] reduced 73% comparing with that in group B[(10.2±2.4)mSv]. Conclusion: Using prospective ECG-triggered to perform CCTA with 256-slice CT could keep the image quality and reduce radiation dose significantly.关键词
体层摄影术,X线计算机/冠状血管/辐射剂量Key words
Tomography/ X-ray computde/ Coronary vessel/ Radiation dosage分类
医药卫生引用本文复制引用
王继芳,姚以刚,徐学权,李春林,任科研,马天赐..256层CT前瞻性心电门控冠状动脉成像研究[J].中国医学装备,2013,10(2):74-76,3.
