Myocardial Stress Perfusion Dynamic Signal Evaluation Algorithm Comparison
Wang Y, Reichek N, Ngai, PhD N, Mathew S, Luo B, Roth M, Han J
St. Francis Hospital, State University of New York
We studied six different perfusion quantification methods that are commonly used in stress perfusion imaging to evaluate their coefficient of variation in seven normal subjects. Three slope-based, semi-quantitative algorithms and three model-based quantitative algorithms were used in each subject. The results showed a smaller variation using a constrained algorithm compared to any other method. Furthermore, the flow reserves from the model-based methods were more consistent with each other and had higher values than the slope-based methods.