Abstract #2381
Comparison of Reconstruction Methods for Accelerated Cardiac MR Stress Perfusion with Radial Sampling After Physiological Exercise
Silvio Pflugi 1,2 , Sbastien Roujol 1 , Mehmet Akakaya 1 , Keigo Kawaji 1 , Murilo Foppa 1 , Bobby Heydari 3 , Beth Goddu 1 , Kraig V Kissinger 1 , Sophie Berg 1 , Warren J. Manning 1,4 , Sebastian Kozerke 2 , and Reza Nezafat 1
1
Department of Medicine, Beth Israel
Deaconess Medical Center / Harvard Medical School,
Boston, MA, United States,
2
Institute
for Biomedical Engineering, University and ETH Zurich,
Zurich, Switzerland,
3
Department
of Medicine, Brigham and Women Hospital and Harvard
Medical School, Boston, MA, United States,
4
Department
of Radiology, Beth Israel Deaconess Medical Center /
Harvard Medical School, Brookline, MA, United States
Physiologic stress CMR perfusion provides unique
information regarding the patients exercise capacity,
hemodynamic response to exercise, and the extent of
physical activity that can reproduce the patients
symptoms during imaging. Accelerated non-Cartesian
imaging has shown promises as an alternative to
Cartesian sampling for CMR perfusion after physical
exercise due to a) its efficient k-space sampling, b)
better motion properties, and c) lower dark-rim
artifacts. In this study, we sought to compare the
performance of four non linear reconstruction methods
for accelerated CMR perfusion with radial sampling after
exercise on an MR-compatible supine bike ergometer.
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