彩色多普勒超声在婴幼儿肝移植术后肝动脉检测中的意义

The significance of color doppler ultrasound for detecting hepatic artery in pediatric liver transplantation

目的探讨彩色多普勒超声在婴幼儿肝移植术后肝动脉检测的意义。方法应用彩色多普勒超声对57例婴幼儿肝移植患者术后进行肝动脉检测,观察有无血流信号,肝动脉收缩期流速(S)、舒张期流速(D)及S/D情况。随访时间最短2个月,最长9个月。收集所有患者的动脉检测数据进行分析。结果 52例患儿彩色多普勒超声提示肝动脉血流通畅,未见明显异常;5例患儿分别在术后5~8天内彩色多普勒超声检查于肝门部及肝内均未探及到动脉血流信号,考虑肝动脉血栓形成,3例经血管造影证实、1例经超声造影及增强CT证实,1例超声出现假阳性,血管造影显示肝动脉未见明显异常。彩色多普勒超声对肝动脉检测的诊断符合率达98%。结论彩色多普勒超声为婴幼儿肝移植术后动脉的监测及并发症的早期诊断提供重要的依据。

ObjectiveTo investigate the significance of color doppler ultrasound for detecting hepatic artery in pediatric liver transplantation.Methods Application of color doppler ultrasound to observe the hepatic artery in 57 pediatric after liver transplantation, observe whether the signal of blood flow,systolicvelocity(S),diastolic velocity (D) and S/D. The minimum follow-up time is2 months, the longest is9 months. All patients with artery detection data were collected for analysis.Results No obvious abnormality of hepatic artery was observed in52 cases with color doppler ultrasound. Arterial flow signal could not be detected in5 patients5-8 days after transplantation and hepatic artery thrombosis was considered,in which3 cases were confirmed by digital subtraction angiography(DSA),1 case by contrast-enhanced ultrasound and CT, and1 case was confirmed to be ultrasonic false positive with DSA showed no obvious abnormal hepatic artery. Diagnosis coincidence rate of color doppler ultrasound in hepatic artery detection was98%.Conclusion Color Doppler ultrasound provides an important basis for hepatic artery monitoring and early diagnosis of complication after liver transplantation.