Table 2.
SPECT | CMR | PET | P value (Friedman) | |
---|---|---|---|---|
Time from 99mTc tracer inj. to (h) | 2.2 ± 0.3 | 34.5 ± 8.5‡ | 32.4 ± 24.4‡ | 0.02 |
Area at risk, % of LV | 35.2 ± 16.6 | 34.7 ± 11.3 | 28.1 ± 16.1‡§ | 0.03 |
Final infarct size, % of LV | 12.3 ± 15.4 | 13.7 ± 10.4 | 11.9 ± 14.6 | 0.72 |
Myocardial salvage index | 0.64 ± 0.33 | 0.65 ± 0.20 | 0.63 ± 0.28 | 0.78 |
Values are mean ± SD
99m Tc, technetium-99m; LV, left ventricle; Salvage index, (AAR-FIS)/AAR; AAR, area at risk; FIS, final infarct size
‡ P < .05 compared to SPECT
§ P < .05 compared to CMR