腹部CTA在肝固有动脉肝外起源变异中的应用

目的 应用256排螺旋CT进行腹部CT血管造影(CTA)观察肝固有动脉肝外起源、走行、管径、分支及变异的影像解剖学情况,为临床上腹部疾病的诊治提供参考依据.方法 收集2017年6月至2019年6月间在湖南中医药大学附属第一医院影像科行上腹部CTA的80例患者影像资料,统计和分析肝固有动脉及其分支的变异情况,测量其相关数...

Application of abdominal CTA in extrahepatic origin variation of proper hepatic artery

Objective To observe the extrahepatic origin, course, diameter, branch and variation of the proper hepatic artery with 256-slice spiral CT angiography (CTA), so as to provide reference for the diagnosis and treatment of upper abdominal diseases. Methods A total of 80 patients who underwent abdominal CTA in the Imaging Department of the First Affiliated Hospital of Hunan University of Traditional Chinese Medicine from Jun. 2017 to Jun. 2019 were collected. The variation of proper hepatic artery and the branches were counted and analyzed, and the related data were measured. Results The extrahepatic origin variation of proper hepatic artery and the branches was found in 15 cases (18.75%). The length of proper hepatic artery was (45.44±22.76)mm, and the internal diameter of the starting point was (2.66±1.68)mm. The length of left hepatic artery was (43.68±18.75)mm, and the internal diameter of the starting point was (3.23±1.09)mm; the length of right hepatic artery was (43.10± 18.50)mm, and the internal diameter of the starting point was (3.26±1.08)mm. The angle between left hepatic artery and right hepatic artery was (75.22±22.36)°. The length of the middle hepatic artery was (59.21±23.75)mm, and the internal diameter of the starting point was (1.99±0.71)mm. The angle between the middle hepatic artery and left hepatic artery was (84.81±39.94)°, and the angle between the middle hepatic artery and right hepatic artery was (57.31±17.28)°. Conclusion The extrahepatic origin of proper hepatic artery and the branches are complex and varied. Abdominal CTA can truly and accurately reflect the morphology in vivo. By measuring the length and diameter and deepening the understanding of variant hepatic artery, it will be helpful for the smooth implementation of upper abdominal surgery.