Abstract:A b w m -To calculate regional myocardial blood flow, ensemble ICA (independent component analysis) was evaluated.Myocardial blood flow was estimated from dynamic H,I5O PET, and perfusion score was computed from myocardial SPECT data in this study. I n ensemble ICA, posterior pdf was approximated by a rectified Gaussian distribution to incorporate non-negativity constraint, which is suitable t o dynamic images in nuclear medicine. Major cardiac components were separated successfully by the ensemble ICA method.… Show more
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