1-Beat:超低剂量排除冠心病 Rapid Exclusion of CAD with Ultra-low-dose CCTA in one heart beat
作者:Prof. Philipp A. Kaufmann, M.D.(苏黎世大学核医学科,瑞士) 翻译:郑颖 刘华阳 审校:任心爽 吕滨(中国医学科学院阜外心血管医院)
病史 Patient History 女,60岁,无心血管风险因素,运动负荷实验后出现不典型的胸痛,临床体征表现为阳性,心电图表现为阴性,最终采用CCTA进行判定。 A woman in her 60s, with nocardiovacular risk factors, but complaining of exercise dependent, atypicalchest pain was referred to coronary CT angiography after an exercise testclinically positive and electrically negative.
Revolution CT采集参数 1-beat 心脏成像(图1) 图1: 1-beat 心脏采集
结论 160mm宽体探测器与ASiR-V的迭代重建技术,能够确保使用超低的扫描剂量和极低的碘对比剂用量,来排除冠心病。(图2) Thanks to the 160mm coverage and ASIR-V the exam was performed with ultra-low dose and very low iodine load to exclude CAD.
图2: CCTA 图像
Philipp A.Kaufmann教授的评价 “Revolution CT 装机之后,我们完成了最初的100例冠脉CT检查,平均吸收剂量为0.5mSv,这要得益于一个心动周期的采集模式、全新的ASiR-V 迭代重建、以及低kV条件下的高清图像质量”。 On the first 100 cardiac CT exams that we performed, weachieved an average dose of 0.5 mSv, thanks to the one-beat axial acquisition,the new iterative reconstruction technology ASiR-V and the high image quality at low kV.
|