Abstract #2110

Myocardial Structural and Velocity Analysis in Patients with Arrhythmias Post-Heart Transplantation

Roberto Sarnari¹, Allison Blake¹, Muhannad Aboud Abbasi¹, Ashitha Pathrose¹, Julie Blaisdell¹, Alyssa Singer¹, Kambiz Ghafourian², Jane Wilcox², Sadiya Khan², Esther Vorovich², Jonathan Rich², Allen Anderson², Clyde Yancy², James Carr¹, and Michael Markl^1,3

¹Radiology, Northwestern University, Chicago, IL, United States, ²Cardiology, Northwestern University, Chicago, IL, United States, ³Biomedical Engineering, Northwestern University, Evanston, IL, United States

Cardiac magnetic resonance including tissue phase mapping was performed in a cohort of heart transplanted (HTx) patients developing atrial arrhythmias or atrio-ventricular blocks: T1-T2-ECV values and 3-directional myocardial velocities were calculated and compared to the same parameters acquired in HTx patients with normal sinus rhythm during the follow up. Alterations in myocardial structural properties (increased T2) and cardiac dynamics were evidenced in cardiac grafts showing hyperkinetic arrhythmias or atrio-ventricular blocks.

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