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Segmentation Of Non-Viable Myocardium In Delayed Enhancement Magnetic Resonance Images, Arunark Kolipaka, George P. Chatzimavroudis, Richard D. White, Thomas P. O’Donnell, Randolph M. Setser
Segmentation Of Non-Viable Myocardium In Delayed Enhancement Magnetic Resonance Images, Arunark Kolipaka, George P. Chatzimavroudis, Richard D. White, Thomas P. O’Donnell, Randolph M. Setser
Chemical & Biomedical Engineering Faculty Publications
Purpose: To evaluate six algorithms for segmenting non-viable left ventricular (LV) myocardium in delayed enhancement (DE) magnetic resonance imaging (MRI). Methods: Twenty-three patients with known chronic ischemic heart disease underwent DE-MRI. DE images were first manually thresholded using an interactive region-filling tool to isolate non-viable myocardium. Then, six thresholding algorithms, based on the image intensity characteristics of either LV blood pool (BP), viable LV myocardium, or both, were applied to each image. For the Mean−2SDBP algorithm, thresholds were equal to the mean BP intensity minus twice its standard deviation. For the Mean+2SDSemi, Mean+3SDSemi, Mean+2SDAuto …