TIPS placement in swine, guided by electromagnetic real-time needle tip localization displayed on previously acquired 3-D CT

被引：31

作者：

Solomon, SB ^{[1
]}

Magee, C ^{[1
]}

Acker, DE ^{[1
]}

Venbrux, AC ^{[1
]}

机构：

[1] Johns Hopkins Univ, Sch Med, Dept Radiol, Div Cardiovasc & Intervent Radiol, Baltimore, MD 21287 USA

来源：

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY | 1999年 / 22卷 / 05期

关键词：

shunts portosystemic; TIPS; computed tomography guidance; computed tomography; 3-dimensional; stereotaxis;

D O I：

10.1007/s002709900416

中图分类号：

R5 [内科学];

学科分类号：

1002 [临床医学]; 100201 [内科学];

摘要：

Purpose: To determine the feasibility of guiding a transjugular intrahepatic portosystemic shunt (TIPS) procedure with an electromagnetic real-time needle tip position sensor coupled to previously acquired 3-dimensional (3-D) computed tomography (CT) images. Methods: An electromagnetic position sensor was placed at the tip of a Colapinto needle. The real-time position and orientation of the needle tip was then displayed on previously acquired 3-D CT images which were registered with the five swine. Portal vein puncture was then attempted in all animals. Results: The computer calculated accuracy of the position sensor was on average 3 mm. Four of five portal vein punctures were successful. In the successes, only one or two attempts were necessary and success was achieved in minutes. Conclusion: A real-time position sensor attached to the tip of a Colapinto needle and coupled to previously acquired 3-D CT images may potentially aid in entering the portal vein during the TIPS procedure.

引用

页码：411 / 414

页数：4

共 14 条

[1]

Extrahepatic portal vein puncture and intra-abdominal hemorrhage during transjugular intrahepatic portosystemic shunt creation [J].