Location of vascular puncture points with dynamic contrast-enhanced MRA before transjugular intrahepatic portosystemic shunt
- VernacularTitle:经颈静脉肝内门体分流术术前穿刺点的动态增强MRA定位
- Author:
Li GUO
;
Dakuan YANG
;
Shuguang YUAN
;
Dong YAN
;
Jiaping WANG
;
Qing YANG
- Publication Type:Journal Article
- Keywords:
Portasystemic shunt,transjugular intrahepatic;
Magnetic resonance angiography;
Localization
- From:
Chinese Journal of Medical Imaging Technology
2010;26(4):764-766
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the role in the localization of vascular puncture points with dynamic contrast-enhanced magnetic resonance angiography (DCE-MRA) before transjugular intrahepatic portosystemic shunt (TIPS). Methods MRA images of 46 patients with portal hypertension were measured. The patients were then punctured according to the measurement Results The supero-inferior distant from the puncture point of hepatic vein to plane of right branch of portal vein (AA') was (22.63±10.21)mm, the anteroposterior distant from the puncture point of hepatic vein to plane of right branch of portal (A'A'') was (13.93±1.07)mm, the angle of sag was (31.64±9.23)°. The distant from puncture point of hepatic vein (AS) and right branch (BS) were (23.51±2.12)mm and (38.51±5.36)mm. The angle of cor was (33.57±8.93)°. Forty-five patients were successful punctured, and the time of puncture decreased. Conclusion The location of portal vein puncture point during TIPS are changeable, therefore individualized location of positioning is needed. DCE-MRA is a valuable non-invasive method of localization, playing an important role in localization of vascular puncture points of TIPS.
