Hazel D Sarah Rovno1, Chun Xu2, Lawrence Dougherty1, James J. Pilla1, 2, Jeremy McGarvey2, Robert C. Gorman2, Joseph H. Gorman, III2, Walter R. T. Witschey1,
1Radiology, University of Pennsylvania, Philadelphia, PA, United States; 2Surgery, University of Pennsylvania, Philadelphia, PA, United States
Single-acquisition, simultaneous 3-D SPAMM strain imaging of the right ventricle permits assessment of direction and magnitude of regional strains in the right ventricle, at different levels base to apex, and along the wall. 4 swine, 2 healthy, 2 post-infarction were imaged with this sequence. An optical flow method was used for tag tracking, and principal systolic strain was calculated from these displacements using a custom program. Maximal 3-D strain over systole was assessed on multiple regions of interest in both ventricles. Trends in strain data were consistent with theoretical expectations, validating this method.