超声造影评价儿童肝移植术后肝动脉闭塞的应用价值

Application of contrast-enhanced ultrasound(CEUS) in evaluation of hepatic artery occlusion after pediatric liver transplantation

目的:探讨超声造影在评价儿童肝移植术后肝动脉闭塞中的应用价值。方法:回顾性分析185例儿童肝移植患者术后肝动脉常规超声检测结果,对14例可疑肝动脉闭塞的病例进行超声造影检查,并将其检查结果与手术病理、数字减影血管造影(DSA)和随访结果进行对比,分析超声造影评价可疑肝动脉闭塞的灵敏度、特异度和准确率;比较活体左外叶肝移植术与原位肝移植术肝移植方法患儿肝动脉闭塞的发生率。结果:超声造影诊断肝动脉闭塞的灵敏度、特异度和准确率均为100%;两种肝移植手术方法患儿肝动脉闭塞发生率比较,差异有统计学意义(x^2=166.267,P<0.001)。结论:超声造影在儿童肝移植术后、常规超声怀疑肝动脉闭塞的患者中可作为重要的补充检查手段。

Objective： To explore the application of contrast-enhanced ultrasound（CEUS） in evaluation of hepatic artery occlusion after pediatric liver transplantation. Methods： A total of 185 cases were reviewed and fourteen cases were suspected as hepatic artery occlusion by conventional ultrasound. These 14 cases were all further examined by CEUS. Results of CEUS were compared with pathology, angiography and follow up of conventional ultrasound. Sensitivity, specificity and accuracy were calculated. Results： Sensitivity, specificity and accuracy of CEUS in evaluation of hepatic artery occlusion after pediatric liver transplantation were all 100%. The differences were statistically significant（x^2=166.267, P〈0.001）. Conclusion： CEUS was an important supplemental examination if conventional suspected hepatic artery occlusion after pediatric liver transplantation.