Antegrade percutaneous closure of membranous ventricular septal defect using X-ray fused with magnetic resonance imaging.

ABSTRACT:

Objectives

We hypothesized that X-ray fused with magnetic resonance imaging (XFM) roadmaps might permit direct antegrade crossing and delivery of a ventricular septal defect (VSD) closure device and thereby reduce procedure time and radiation exposure.

Background

Percutaneous device closure of membranous VSD is cumbersome and time-consuming. The procedure requires crossing the defect retrograde, snaring and exteriorizing a guidewire to form an arteriovenous loop, then delivering antegrade a sheath and closure device.

Methods

Magnetic resonance imaging roadmaps of cardiac structures were obtained from miniature swine with spontaneous VSD and registered with live X-ray using external fiducial markers. We compared antegrade XFM-guided VSD crossing with conventional retro

SUBMITTER: Ratnayaka K 

PROVIDER: S-EPMC2698297 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature