After rising during the early 2000s, use of nuclear myocardial perfusion imaging fell from 2006 to 2011, possibly driven by shifts in physician behavior and lower incidence of coronary disease, researchers wrote in the Journal of the American Medical Association. The drop was most pronounced among outpatients and those younger than 65. Stress echocardiography use was unchanged while cardiac CT use increased, potentially accounting for 5% of the drop in MPI utilization. Myocardial infarction incidence fell 27% from 2006 to 2011.
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