Defect Reversibility on Adenosine MPI Before and After β-Blockade in the Presence of Angiographically Significant Coronary Stenosis (n = 32 Patients)
| Off β-blocker | ||||
|---|---|---|---|---|
| On β-blocker | Reversibility | No reversibility | Total | P |
| Reversibility | 21 | 0 | 21 (66) | |
| No reversibility | 9 | 2 | 11 (34) | |
| Total | 30 (94) | 2 (6) | 32 (100) | 0.01 |
Data in parentheses are percentages.