Tissue Phase Mapping Analysis of Myocarial Function After Heart Transplantation

Marius Menza¹, Bernd Andre Jung¹, Adriana Komancsek¹, Tobias Wengenmayer², Anna Lena Stroh², Daniela Fll²

MR tissue phase mapping (TPM) was used to quantify segmental myocardial velocities including rotation in stable patients after heart transplantation (HTX, n=14) without signs of rejection. Reduced regional long-axis velocities in systole and diastole were revealed in most left ventricular segments compared to healthy volunteers (n=18). HTX patients demonstrated a slightly lower apical rotation and a lower peak of early systolic counterclockwise rotation at the base. A comprehensive description of rotation and twist in the transplanted heart is essential for further studies of HTX rejection and TPM might therefore help to improve the follow-up of these patients in future.