摘要
冠状动脉CT血管造影(CTA)目前已广泛应用于临床,但心律失常患者一直是此项技术的瓶颈。由于传统的螺旋CT及双源CT的技术限制,对心律失常患者扫描过程中往往因为心脏运动不规律,导致图像不连续。心电编辑技术可解决部分此类问题,改善图像的质量,提高诊断的灵敏度。宽探测器CT(如320排螺旋CT)在低心率条件下可在一个心动周期成像,能消除此类伪影,但时间分辨力尚待提高。
Coronary computed tomography angiography（CTA） has been widely applied in clinical practice,but arrhythmia has always been the bottleneck of the technology.Limited by the technological problems of multidetector spiral CT and dual-source CT,images always discontinue for the irregular cardiac rhythm.Electrocardiograph editing technology can improve image quality and diagnostic sensitivity.Wide-detector CT can rebuild the images by a single heartbeat in the case of low heart rate,which helps to eliminate artifacts,but its temporal resolution needs to be improved.
出处
《心脏杂志》
CAS
2012年第1期123-126,共4页
Chinese Heart Journal
