结论:对于上腹CTA,采用bolus-tracking技术选择延迟时间可较采用固定延迟时间有更大比例的病例能在主动脉高水平强化期内扫描;对于该对比剂注射方案,bolus-tracking技术中适宜的强化阈值一过渡延迟分别为IOOHU及88。【关键词】体层摄影术,x线计算机;对比剂;动态扫描中图分类号:11322.1;11814.42文献标识码:A文章编号:1006...
Bolus trackingImage qualityBackgroundThe importance of bolus tracking (BT) regarding total effective radiation dose (ERD) in the era of advanced coronary computed tomography angiography (CTA) has been ignored. We aimed to investigate whether adjusting BT parameters reduces ERD.MethodsAdults consecutively...