Objective To study the characteristics and clinical value of contrast-enhanced ultrasound (CEUS) of Budd-Chiari syndrome(BCS).Methods The examination data of two-dimensional ultrasound and color Doppler ultrasound and CEUS of 32 patients with BCS retrospectively were analysed,the inferior vena cava,hepatic vein blood flow imaging characteristics were observed,all patients were confirmed by angiography and interventional treatment or surgery.Results The characteristic of CEUS of BCS:inferior vena cava and/or hepatic vein stenosis in local blood flow pattern turn narrowed,blocking local without enhancement.Post-hepatic inferior vena cava imaging was delayeds or not development,when the stenosis or obstruction was improved or removed after treatment,the post-hepatic inferior vena cava development time was significantly shortened.Development time had no obvious difference between narrow one and normal one among three main hepatic vein.Blood flow edge inner vessel can be well displayed,which is beneficial to show lunmen shape of narrow section and blood flow beam direction.The blood flow information inner vascular stent can be displayed.There was no angle dependence,can improve signal detection rate of low flow and low velocity blood flow.Conclusions CEUS can well display inferior vena cava,hepatic vein stenosis or obstruction with position,extent and degree,especially in identification of inferior vena cava or hepatic vein occlusion with severe stenosis,which has important value to the choice of operation method,the judgment of therapeutic effect and postoperative follow-up.%目的 探讨Budd-Chiari综合征的超声造影特征及临床价值.方法 回顾性分析32例BCS患者的二维超声、彩色多普勒超声和超声造影检查资料,重点观察下腔静脉、肝静脉血流显影的特点,全部患者经血管造影、介入或手术治疗证实.结果 BCS超声造影特征性表现为:下腔静脉和(或)肝静脉狭窄处局部血流形态变窄,阻塞处局部无增强；肝后段下腔静脉显影延迟或不显影,当狭窄或阻塞经治疗改善或解除后,肝后段下腔静脉显影时间明显缩短；三支肝静脉主支之间狭窄支与正常支显影时间无明显区别；能良好显示血管内血流边缘,有利于显示狭窄段管腔内形及腔内血流束的走行；能较好显示血管支架内血流信息；不存在角度依赖性,可提高低流量、低流速血流信号的检出率；不能提供血流方向的信息.结论 超声造影能良好显示下腔静脉、肝静脉狭窄或阻塞的部位、范围和程度,尤其适用于下腔静脉或肝静脉阻塞与重度狭窄的鉴别,这对手术方式的选择、治疗效果的判断和术后随访具有重要价值.
展开▼
