Shapiro R S, Ramos R, Stancato-Pasik A, Glajchen N, Parsons R, Mitty H A, Yeh H C
Department of Radiology, Mount Sinai Medical Center, NY 10029-6574, USA.
Comput Med Imaging Graph. 1995 Jul-Aug;19(4):343-50. doi: 10.1016/0895-6111(95)00016-x.
To assess the relationship between portal vein velocity measurements and portosystemic gradients, color Doppler sonography was performed on 12 patients before and after transjugular intrahepatic portosystemic shunt placement. An additional patient was examined before and after shunt modification. The average maximum portal vein velocity increased from 15.7 cm s-1 before shunt placement to 43.5 cm s-1 after shunt placement, while the average portosystemic gradient decreased from 22.0 mm Hg before shunt placement to 7.9 mm Hg after shunt placement. Flow was observed within the shunt in 11 of the 12 cases. Shunt velocity was measurable in nine patients, with an average value of 115.7 cm s-1. Reversal of intrahepatic portal vein flow was observed in 10 cases following shunt placement. Color Doppler sonography is a useful non-invasive tool in the evaluation of intrahepatic portosystemic shunts, and changes in portal vein velocity correlate well with changes in the portosystemic gradient.
为评估门静脉血流速度测量值与门体静脉压力梯度之间的关系，对12例患者在经颈静脉肝内门体分流术（TIPS）置入前后进行了彩色多普勒超声检查。另外1例患者在分流术调整前后接受了检查。门静脉平均最大血流速度从分流术前的15.7 cm/s增加至分流术后的43.5 cm/s，而平均门体静脉压力梯度从分流术前的22.0 mmHg降至分流术后的7.9 mmHg。12例患者中有11例在分流通道内观察到血流。9例患者的分流速度可测，平均值为115.7 cm/s。分流术后10例患者观察到肝内门静脉血流逆转。彩色多普勒超声是评估肝内门体分流的一种有用的非侵入性工具，门静脉血流速度的变化与门体静脉压力梯度的变化密切相关。
