[磁共振血管造影在门静脉高压研究中的临床应用]

[Angiography with magnetic resonance in the study of portal hypertension. Clinical applications].

作者信息

Squillaci E, Crecco M, Lo Presti G, Grandinetti M L, Tipaldi L, Pocek M, Squillaci S, Simonetti G

机构信息

Istituto di Radiologia, Università di Roma, Tor Vergata.

出版信息

Radiol Med. 1993 Jun;85(6):756-63.

PMID:8337433

Abstract

The role of MR angiography (MRA) was investigated in 31 patients with portal hypertension. The 2D time-of-flight (TOF) technique was used. All patients underwent CT first. MR angiograms were compared with DSA images in 15 cases and to duplex or color Doppler US scans in 16 cases. In 5 low-grade portal hypertension cases MRA showed splenoportal trunk enlargement and portal vein verticalization. In 26 patients with high-grade portal hypertension MRA allowed portosystemic shunts extent to be evaluated. Portal flow reduction or inversion and left gastric vein enlargement were always demonstrated by MRA in the patients with esophageal varices and azygos vein enlargement. MRA always correctly visualized cavernoma (5 cases) and portal vein thrombosis (9 cases). The diagnostic yield of MRA was greater than that of CT and SE MR sequences in 91% of cases. MRA provided the same information as (or more than) DSA and duplex US in 66% of cases.

摘要

对31例门静脉高压患者进行了磁共振血管造影（MRA）检查。采用二维时间飞跃（TOF）技术。所有患者均先进行CT检查。15例患者的MRA血管造影与数字减影血管造影（DSA）图像进行了比较，16例患者与双功或彩色多普勒超声扫描进行了比较。在5例轻度门静脉高压病例中，MRA显示脾门静脉主干增粗和门静脉垂直化。在26例重度门静脉高压患者中，MRA可评估门体分流程度。MRA在食管静脉曲张和奇静脉增粗的患者中总是显示门静脉血流减少或逆流以及胃左静脉增粗。MRA总能正确显示海绵状血管瘤（5例）和门静脉血栓形成（9例）。在91%的病例中，MRA的诊断率高于CT和SE MR序列。在66%的病例中，MRA提供了与DSA和双功超声相同（或更多）的信息。