Abstract #4463
Late Gadolinium Enhancement for Left Ventricular Lead Guidance in Cardiac Resynchronization Therapy: Comparison of 3D Free-breathing IR-FLASH vs 2D Breath-hold Phase-Sensitive IR
Adrian Lam 1 , Ankit Parikh 2 , Michael Lloyd 2 , and John Oshinski 1,3
1
Department of Biomedical Engineering,
Georgia Institute of Technology, Atlanta, Georgia,
United States,
2
Department
of Medicine, Emory University, Georgia, United States,
3
Department
of Radiology and Imaging Science, Emory University,
Georgia, United States
Optimal patient response to Cardiac Resynchronization
Therapy is associated with left ventricular lead
implantation in the latest contracting segment of the
myocardium that is not predominantly myocardial scar.
However, transvenous implantation through the coronary
sinus limits lead implantation locations to regions that
can be accessed by the coronary veins. A 3D,
contrast-enhanced, free-breathing inversion recovery
(IR) FLASH sequence can visualize the coronary veins and
can be used for late gadolinium enhanced (LGE) imaging.
The purpose of this study was to evaluate the potential
of 3D, LGE, free-breathing, IR-prepared FLASH compared
to the clinical standard, 2D LGE Phase Sensitive
Inversion-Recovery (PSIR).
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