Fig. 1

Four abnormal SPECT phenomena

(A) RMPD: The stress SPECT images show a reversible perfusion defect from the lateral wall apex to part of the middle of the posterior lateral wall. (B) TID: Rest EDV is 83ml and stress EDV is 102ml. The TID value is 1.27, which is likely to represent diffuse subendocardial ischemia or microvascular disease in the absence of epicardial coronary disease. (C) RR: The stress images show no perfusion defects, while the rest images show perfusion defects (including in the apical anterior segment of the left ventricle wall, the lateral apical segment, the posterior lateral wall mid-segment, and the basal segment). (D) EF decline ≥ 5%: Rest EF was 76%, and stress EF is declined to 62%; EF declined 14%