摘要
目的探讨彩色多普勒超声诊断肝移植术后下腔静脉栓塞及狭窄的价值。材料和方法回顾性分析103例成人肝移植术后9例下腔静脉栓塞及狭窄的彩色多普勒超声表现。结果超声发现下腔静脉栓塞7例,下腔静脉狭窄2例,均经血管造影、磁共振或临床证实。下腔静脉栓塞超声表现为吻合口及下腔静脉内部分或完全被等回声充填,彩色多普勒及频谱多普勒显示充填部分血流信号消失;下腔静脉狭窄的超声表现为吻合口血流紊乱且血流速度加快。结论多普勒超声在肝移植术后下静脉栓塞及狭窄的诊断中具有重要的价值。
Purpose： To evaluate the value of color Doppler ultrasound in diagnosing IVC thrombosis and stenosis after orthotopic liver transplantation（OLT）. Materials and Methods： The sonographic features in 9 cases of IVC thrombosis and stenosis were analyzed retrospectively. Results： Seven thrombosis and 2 stricture of IVC were correctly detected by Color Doppler ultrasound and confirmed by angiography, MRI or clinical data. The thrombosis was characterized in sonography by disappearance of blood flow and a partial or complete filling with echogenicity in anastomosis and IVC. The sonographic feature of stricture was turbulence or high velocity of blood flow. Conclusion： Color Doppler ultrasound is valuable in diagnosing IVC thrombosis and stricture after OLT.
出处
《中国医学影像学杂志》
CSCD
2005年第5期342-344,共3页
Chinese Journal of Medical Imaging
