Prognostic value of myocardial perfusion scintigraphy using accelerated cardiac acquisition with IQ SPECT technique

287 Objectives IQ-SPECT, an add-on to general purpose cameras based on multifocal collimation, can reduce myocardial perfusion imaging (MPI) acquisition times to one-fourth that of standard procedures (to 12 s/view) To date, there is no data on the prognostic value of the MPI performed with the IQ SPECT. The objective of this study is to evaluate the use of this new technology in predicting adverse events. Methods Retrospective analysis of a hybrid SPECT-CT equipment (Symbia T2) with 99mTc sestamibi MPI database from December 2011 to May 2012,. Follow up by telephone (minimum 12 months) to assess the primary endpoint: nonfatal myocardial infarction, cardiovascular death and revascularization. Secondary outcomes: presence of late combined events. Results We analyzed 625 patients mean age of 64 (+/- 12) years. 415 (66.4%) were male. The average follow-up time was 1041 days. Of these, 167 (26.7%) had myocardial ischemia. Of the 625 patients, 99 (15.8%) had cardiac events, of which 82 (13.1) underwent revascularization. Regarding the late combined events, 50 (8.7%) patients had an event. There was a significant association between chest pain and ischemic burden with revascularization. Dyspnea and ischemic burden were predictive of late events combined (p Conclusions IQ SPECT is useful tool determining the prognosis regarding revascularization and combined events.