Baseline differences in left ventricular volumes and degree of dyssynchrony are associated with inducible ischemia on stress testing in a gated-SPECT MPI. Stress-induced ischemia increases the degree of intraventricular dyssynchrony.

Patients presenting with acute chest pain and a low-to-intermediate likelihood of coronary artery disease with a normal rest MPI have a very low probability of cardiac events during the first year. Coronary calcium score was not helpful in risk-stratifying these patients.

A stress-rest gated-SPECT is a valid approach to detect early myocardial alterations, as well as intraventricular dyssynchrony in the indeterminate phase of Chagas disease in patients with segmental motion abnormalities previously detected by TDI-derived strain.

A rest gated SPECT is a valid approach to identify HF patients most likely to experience cardiac events.

The authors have corrected an error in Figure 6, BPractical al gorithm to e valuat e p atients prior to cardi ac resynchronization therapy with gated-SPECT MPI.^In the corrected figure, under BEvaluation of scar if ischemic DCM,^BNO^now points to BConsideration for CRT,^and BYES^points to BAppropriate therapy.T he online version of the original article can be found at http://dx