Antegrade Percutaneous Closure of Membranous Ventricular Septal Defect Using X-Ray Fused With Magnetic Resonance Imaging

Kanishka Ratnayaka, Venkatesh K. Raman, Anthony Z. Faranesh, Merdim Sonmez, June Hong Kim, Luis F. Gutiérrez, Cengizhan Ozturk, Elliot R. McVeigh, Michael C. Slack, Robert J. Lederman

Research output: Contribution to journalArticlepeer-review

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 retrograde X-ray-guided crossing for repair. Results: Antegrade XFM crossing was successful in all animals. Compared with retrograde X-ray, antegrade XFM was associated with shorter time to crossing (167 ± 103 s vs. 284 ± 61 s; p = 0.025), shorter time to sheath delivery (71 ± 32 s vs. 366 ± 145 s; p = 0.001), shorter fluoroscopy time (158 ± 95 s vs. 390 ± 137 s; p = 0.003), and reduced radiation dose-area product (2,394 ± 1,522 mG·m2 vs. 4,865 ± 1,759 mG·m2; p = 0.016). Conclusions: XFM facilitates antegrade access to membranous VSD from the right ventricle in swine. The simplified procedure is faster and reduces radiation exposure compared with the conventional retrograde approach.

Original languageEnglish (US)
Pages (from-to)224-230
Number of pages7
JournalJACC: Cardiovascular Interventions
Volume2
Issue number3
DOIs
StatePublished - Mar 2009
Externally publishedYes

Keywords

  • congenital heart disease
  • heart septal defects
  • image-guided intervention
  • interventional magnetic resonance imaging
  • multimodality image fusion
  • ventricular

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Medicine(all)

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