Last updated on February 2018

Cardiac Magnetic Resonance Imaging After Cardiac Resynchronization Therapy


Brief description of study

This study is evaluating how MRI after CRT can provide key insights regarding LV function, structure, and mechanics resulting from CRT in patients with or without LV scar and inform optimal pacing strategies. The expected accurate and reproducible response assessment with cardiac MRI has important implications for evaluating CRT outcomes in clinical trials, and the insights from the post-CRT MRI promise to improve implementation of CRT.

Detailed Study Description

We are performing a study of 40 patients with current accepted indications for CRT and no MRI contraindications. These patients will have a pre-CRT MRI and another post-CRT MRI 6 months after the CRT procedure. Echocardiography, cardiopulmonary exercise testing, symptom assessment, and laboratory testing are also performed before and after CRT. Modifications to the post-CRT MRI protocol include the use of gradient echo cine imaging rather than steady state free precession imaging, application of wideband imaging to the LGE acquisitions, and strain imaging with cine Displacement Encoding with Stimulated Echoes (DENSE) tailored for device patients.

Clinical Study Identifier: NCT03183011

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University of Virginia Health System

Charlottesville, VA United States
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Recruitment Status: Open


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