双源CT诊断小儿心血管疾病应用进展

Progress of dual-source CT in cardiovascular diagnosis of children

双源CT具有两套数据采集系统，实现了83ms的恒定时间分辨率，可对患者在不行心率干预的情况下，获得高质量血管图像和心脏显像。另外，其独特的双能量成像技术可用于评价组织血流灌注以及鉴别组织成分等，拓宽了CT的临床应用价值。双源CT能够从心脏的形态学以及功能学两方面获得心脏的信息，提高了对病变诊断的正确性。该文对双源CT的特性及其在心血管诊断中的应用进展作一概述。

The dual source computed tomography （DSCT） is equipped with two corresponding detectors. DSCT scanners combine high spatial resolution with a considerably increased temporal resolution of 83 milliseconds to image the heart and vascular with reliably good image quality even without heart rate control. DSCT has proven its reliability in providing quality information for both function and morphology of the heart. Emergence of DSCT made CT coronary artery visualization easier and more robust. It has a brilliant practical future.