Characteristics of Late MAC Group with Rest SAC, Postdipyridamole SAC, and MAC Data
| Parameter | Artifacts (n = 55) (mean ± SD) | Normals (n = 18) (mean ± SD) | P value |
|---|---|---|---|
| Age (y) | 54.60 ± 9.78 | 48.28 ± 22.11 | 0.095 |
| BMI (kg/m2) | 27.15 ± 3.83 | 22.16 ± 2.86 | <0.001 |
| Heart displacement* (mm) | 5.55 ± 4.37 | 4.17 ± 2.57 | 0.210 |
| Diaphragm displacement* (mm) | 7.45 ± 8.59 | 0.56 ± 3.38 | 0.001 |
| Heart area, horizontal† (cm2) | 156.92 ± 33.45 | 133.82 ± 24.24 | 0.009 |
| Heart area, vertical† (cm2) | 116.24 ± 24.08 | 96.76 ± 13.68 | 0.002 |
| Misregistration, horizontal† (%) | 17.12 ± 9.04 | 6.26 ± 5.43 | <0.001 |
| Misregistration, vertical† (%) | 16.11 ± 9.52 | 6.18 ± 5.19 | <0.001 |