A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, consisting of (A) administering a rest radiotracer to the patient while the patient is at rest then (B) when the rest radiotracer is fixed in a heart of the patient, scanning the heart to obtain rest heart pumping ability information (C) scanning the heart of the patient to obtain a rest perfusion image (D) administering a stressing agent to the patient to place the patients heart under stress (E) scanning the heart of the patient to obtain stress heart pumping ability information then (F) administering a stress radiotracer while the heart of the patient is under stress then (G) when the stress radiotracer is fixed in the heart, scanning the heart to obtain a stress perfusion image.
