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Main features of each imaging modality.
| Low-dose dobutamine echocardiography | CCTA | CMR | PET | SPECT | |
|---|---|---|---|---|---|
| Radiation exposure (mSv) (91) | 0 | 2–4 mSv | 0 | 18FDG: 5-7 mSv 13NH3: 4 mSv | 99TC: 20 mSv |
| Cost | + | ++ | +++ | +++ | ++ |
| Operator dependency | +++ | + | + | + | + |
| Ischemia quantification (92) | YES | NO | YES | YES | YES |
| Viability sensitivity (95%CI) (91–93) | 81% (80-82) | - | 95% (93-97) | 93% (91-95) | 81% (78-84) |
| Viability specificity (95%CI) (91) | 80% (79-81) | - | 51% (40-62) | 58% (54-62) | 66% (63-69) |
