Imaging of Reperfused Intramyocardial Hemorrhage with Cardiovascular Magnetic Resonance Susceptibility Weighted Imaging (SWI) |
| |
| Authors: | James W. Goldfarb Usama Hasan |
| |
| Affiliation: | 1Department of Research and Education, Saint Francis Hospital, Roslyn, NY, United States of America;2Program in Biomedical Engineering, SUNY Stony Brook, Stony Brook, NY, United States of America;3New York College of Osteopathic Medicine, Old Westbury, NY, United States of America;Wayne State University, UNITED STATES |
| |
| Abstract: | PurposeTo report initial experience with TE-averaged susceptibility weighted imaging (SWI) in normal subjects and acute myocardial infarction (AMI) patients for the detection of intramyocardial hemorrhage (IMH).ResultsThere were six patients with microvascular obstruction (MVO) and four patients with IMH detected by TE-averaged SWI imaging. All patients with IMH on SWI scans had MVO on late gadolinium-enhanced (LGE) imaging. There was a three-fold increase in IMH contrast with SWI compared to magnitude images. IMH contrast decreased and signal-to-noise increased with increased TE averages.ConclusionsTE-averaged SWI imaging is a promising method for myocardial tissue characterization in the setting of AMI for the detection of IMH. Along with gray-scale colormap inversion, it combines not only magnitude and phase information, but also images across TEs to provide a single image sensitive to IMH with characteristics similar to LGE imaging. |
| |
| Keywords: | |
|
|
