近年来,随着科学技术的进步,医学影像学得到了飞速发展,从过去单一的X线成像技术发展成为与计算机、电子学和医学生物工程技术等相结合的综合诊断体系。CT机已由早年的单一检测器发展成为目前拥有多排检测器的多排螺旋CT。CT血管造影就是在螺旋CT的基础上发展起来的一项CT检查 In recent years, with the progress of science and technology, medical imaging has developed rapidly. From the single X-ray imaging technology in the past, it has developed into a comprehensive diagnostic system combining with computer, electronics and medical bioengineering technology. The CT machine has been developed from a single early detector to a multislice spiral CT that currently has multiple rows of detectors. CT angiography is a CT scan developed on the basis of spiral CT