PET perfusion imaging improves risk estimates

December 6, 2012

New data from a large multicenter registry suggest that positron-emission-tomography (PET) myocardial perfusion imaging (MPI) can greatly improve the accuracy of risk estimation in coronary disease patients compared with a model based on traditional risk factors [1].

Only small single-center studies have demonstrated the prognostic value of PET MPI in predicting which patients are at greatest risk for coronary disease events. So Dr Sharmila Dorbala (Brigham and Women's Hospital, Boston) and colleagues analyzed outcomes from 7061 patients from four centers who underwent a clinically indicated rest/stress rubidium-82 PET MPI test.