Lee Seung Soo, Kim Tae Kyoung, Byun Jae Ho, Ha Hyun Kwon, Kim Pyo Nyun, Kim Ah Young, Lee Sung Gyu, Lee Moon-Gyu
Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Poongnap-dong, Songpa-gu, Seoul, 138-736, Korea.
Radiology. 2003 May;227(2):391-9. doi: 10.1148/radiol.2272012033. Epub 2003 Apr 3.
To assess the accuracy of multi-detector row computed tomographic (CT) angiography in the evaluation of hepatic arterial anatomy in living related liver transplantation (LRLT) donors.
During a 10-month period, 62 potential LRLT donors were evaluated with CT and conventional angiography. Multi-detector row CT was performed after intravenous injection of 150 mL of contrast material at 3 mL/sec. CT angiograms of the hepatic arteries were generated by a radiologist who used volume rendering and maximum intensity projection techniques without knowledge of results of conventional angiography. Two reviewers reviewed CT and conventional angiograms retrospectively in consensus. The results of the two examinations were then compared.
CT examinations were technically adequate in 56 (90%) donors. Respiratory motion artifact compromised detailed hepatic artery analysis in six donors (10%). Second-order branches of right hepatic arteries were visualized in 58 donors (94%), and second-order branches of left hepatic arteries were visualized in 51 (82%). A total of 27 hepatic arterial anatomic variations were detected in 22 donors at conventional angiography. CT angiography accurately depicted 25 (93%) anatomic variations in 20 donors (91%). CT angiography did not depict an accessory right hepatic artery in two donors. The number and origins of dominant arteries supplying segment IV were accurately identified at CT angiography in 51 donors (82%). Hepatic arterial anatomy depicted at CT angiography was identical to that at conventional angiography in 50 donors (81%).
Multi-detector row CT angiography is useful but limited in its ability to depict the dominant artery supplying segment IV and small accessory hepatic arteries.
评估多排螺旋计算机断层扫描（CT）血管造影在活体亲属肝移植（LRLT）供体肝动脉解剖结构评估中的准确性。
在10个月的时间里，对62名潜在的LRLT供体进行了CT和传统血管造影检查。在以3 mL/秒的速度静脉注射150 mL造影剂后进行多排螺旋CT检查。由一名放射科医生生成肝动脉的CT血管造影图像，该医生在不知道传统血管造影结果的情况下使用容积再现和最大密度投影技术。两名审阅者对CT和传统血管造影图像进行回顾性一致审阅。然后比较两项检查的结果。
56名（90%）供体的CT检查在技术上是充分的。呼吸运动伪影影响了6名供体（10%）肝动脉的详细分析。58名供体（94%）的右肝动脉二级分支可见，51名（82%）的左肝动脉二级分支可见。在传统血管造影中，22名供体共检测到27处肝动脉解剖变异。CT血管造影准确显示了20名供体（91%）中的25处（93%）解剖变异。CT血管造影未显示两名供体的副右肝动脉。在51名供体（82%）中，CT血管造影准确识别了供应IV段的主要动脉的数量和起源。50名供体（81%）的CT血管造影显示的肝动脉解剖结构与传统血管造影相同。
多排螺旋CT血管造影在描绘供应IV段的主要动脉和小的副肝动脉方面有用但有局限性。
