MSCT血管成像与血管造影对肝移植术后肝动脉狭窄观察对比研究

目的：通过多层螺旋CT血管成像与普通血管造影检查的对比研究，对多层螺旋CT血管成像在肝移植术后肝动脉狭窄诊断中的应用价值进行初步的探讨。方法：对我院自1998年9月－2000年10月共收治100例肝移植患进行回顾性总结。从中选择既进行了普通血管造影检查又进行了多层螺旋CT检查的患，对其两种影像学结果进行比较。结果：16例患满足研究标准。多层螺旋CT血管成像结果显示：16例患中肝动脉未见异常6例，肝动脉狭窄10例，其中轻度狭窄2例，中度狭窄4例，重度狭窄2例，完全闭塞2例。普通血管造影检查结果显示：16例患中肝动脉未见异常6例，肝动脉狭窄10例，其中轻度狭窄2例，中度狭窄4例，重度狭窄3例，完全闭塞1例。结论：多层螺旋CT肝动脉成像对于肝移植术后肝动脉狭窄的诊断具有安全、无创、准确的优点，可作为肝移植术后对肝动脉情况进行随访的首选手段，且可为肝动脉狭窄患下一步进行治疗提供帮助。

A comparative study of multislice spiral CT angiography and conventional arteriography in evaluation of hepatic artery stenosis following liver transplantation

Objective:To evaluate multislice helical CT angiography(MSCTA) in the diagnosis of hepatic artery stenosis in patients after liver transplantation.Methods:100 patients were performed liver transplantation in our hospital during Sept 1998 to Oct 2000.The patients undergone both conventional arteriography and MSCTA were chosen in our study.A comparative study between conventional arteriography and MSCTA was then done.Results:16 patients met the standard desired in our study. Normal hepatic artery in 6 patients and abnormal in 10 were demonsrated by MSCTA.Those patients with hepatic artery stenosis include 2 mild stenosis,4 moderate stenosis,2 severe stenosis and 2 occlusion.Conventional arteriography demonstrated mild hepatic artery stenosis in 2,moderate in 4,severe in 3 and occlusion in 1.There was no significant difference between MSCTA and conventional arteriography.Conclusion:MSCTA is a safe,noninvasive and accurate method in the diagnosis of hepatic artery stenosis after liver transplantation.