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Figure 2 (A) Single photon emission computed tomography (SPECT) summed stress score (SSS) and summed difference score (SDS) (SDS = SSS – summed rest score [SRS]) of myocardial perfusion abnormalities at baseline and six months are compared. Significant reductions in these perfusion indices were observed. In contrast, SSS was not reduced at six weeks. The SRS did not change during the study (see text). Lines track individual patient values from baseline to the six-month study. (B) Automated analyses of the stress SPECT myocardial perfusion defect size and topographic extent quantified by percent of LV hypoperfusion, using the Yale Wackers-Liu software program. Similar to the SSS, no differences were found between baseline and six-week studies (not shown). Lines track individual patient values from baseline to the six-month study.
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