Patient Physiologic Parameters During SPECT MPI
| Characteristic | All patients (n = 90) | Patients with TID (n = 30) | Patients without TID (n = 60) | P |
| Heart rate (stress) | 128 ± 31 | 128 ± 28 | 129 ± 32 | 0.935 |
| Systolic blood pressure (stress) | 161 ± 29 | 158 ± 28 | 162 ± 31 | 0.312 |
| Atrial fibrillation | 3 (3) | 2 (7) | 1 (2) | 0.613 |
Data are n, with percentages in parentheses, or mean ± SD, unless otherwise indicated.