Bodner G, Peer S, Fries D, Dessl A, Jaschke W
Department of Radiology, University Hospital of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
Eur J Ultrasound. 2000 Dec;12(2):131-6. doi: 10.1016/s0929-8266(00)00110-5.
To evaluate blood flow changes inside normally functioning transjugular intrahepatic portosystemic shunts (TIPS), using color Doppler ultrasound (CDUS) and pulsed Doppler ultrasound (PDUS).
A total of 72 patients (mean age 54, range 36-78 years) underwent TIPS placement, portal angiography, CDUS and PDUS examinations. Measurements inside the stent were taken at the portal side, at the central part and at the venous end of the TIPS.
In well functioning TIPS the mean peak velocity (PV) on the portal side was 37 m/s (range 22-65 cm/s), in the area of the incoming intrahepatic portal branch the mean PV was 59 cm/s (range 40-95 cm/s) and at the side of the incoming hepatic vein the mean PV was 135 cm/s (range 88-220 cm/s). In the punctured hepatic and portal veins the mean PV was 25 cm/s (range 15-30 cm/s) and 18 cm/s (10-22 cm/s), respectively. The flow increase from the portal to the mid part (P less than or = 0.001) and to the venous side was statistically significant (P less than or = 0.001).
A velocity gradient between the portal and the venous side of a TIPS is a normal finding caused by branches of the portal and hepatic vein joining the TIPS from the side and it is characteristic of a normally functioning TIPS.
使用彩色多普勒超声（CDUS）和脉冲多普勒超声（PDUS）评估正常功能的经颈静脉肝内门体分流术（TIPS）内部的血流变化。
总共72例患者（平均年龄54岁，范围36 - 78岁）接受了TIPS置入、门静脉血管造影、CDUS和PDUS检查。在TIPS的门静脉侧、中心部分和静脉端进行支架内测量。
在功能良好的TIPS中，门静脉侧的平均峰值流速（PV）为37 cm/s（范围22 - 65 cm/s），肝内门静脉分支汇入区域的平均PV为59 cm/s（范围40 - 95 cm/s），肝静脉汇入侧的平均PV为135 cm/s（范围88 - 220 cm/s）。在穿刺的肝静脉和门静脉中，平均PV分别为25 cm/s（范围15 - 30 cm/s）和18 cm/s（10 - 22 cm/s）。从门静脉到中部（P≤0.001）以及到静脉侧的血流增加具有统计学意义（P≤0.001）。
TIPS门静脉侧和静脉侧之间的速度梯度是正常发现，这是由于门静脉和肝静脉分支从侧面汇入TIPS所致，是正常功能TIPS的特征。
