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Original Research Magnetic Resonance Image-Guided Trans-Septal

Summary: Original Research
Magnetic Resonance Image-Guided Trans-Septal
Puncture in a Swine Heart
Aravind Arepally, MD,1* Parag V. Karmarkar, MS,1
Clifford Weiss, MD,1
E. Rene Rodriguez, MD,2
Robert J. Lederman, MD,3
and Ergin Atalar, PhD1
Purpose: To test the feasibility of performing magnetic reso-
nance (MR)-guided trans-septal punctures in the swine heart.
Materials and Methods: All procedures were performed in
a 1.5-T MR scanner. A novel, active MR intravascular nee-
dle system was utilized for needle tracking and septal punc-
tures. Trans-septal punctures were performed in five swine
using electrocardiogram (ECG)-gated high resolution and
non-ECG-gated, real-time MR imaging techniques. The in-
travascular needle was advanced over a guidewire from the
femoral vein. Once the needle was in proper position, trans-
septal punctures were made.
Results: Active tracking of the needle traversing the sep-


Source: Atalar, Ergin - Department of Electrical and Electronics Engineering, Bilkent University


Collections: Engineering; Biology and Medicine