Table 2.
CMR results in AS patients vs. normal controls
| Aortic stenosis (n = 28) | Normal (n = 15) | P value | |
|---|---|---|---|
| BOLD signal intensity change (%) |
5.1 ± 8.9 |
18.2 ± 10.1 |
0.001 |
| Myocardial perfusion reserve index |
1.1 ± 0.3 |
1.7 ± 0.3 |
<0.001 |
| Circumferential strain (%) |
−16.4 ± 2.7 |
−21.3 ± 1.9 |
<0.001 |
| PCr/ATP |
1.45 ± 0.21 |
2.00 ± 0.25 |
<0.001 |
| LV ejection fraction (%) |
74 ± 6 |
69 ± 4 |
0.01 |
| LV end-diastolic volume (ml) |
142 ± 45 |
137 ± 33 |
0.73 |
| LV end-systolic volume (ml) |
37 ± 20 |
42 ± 12 |
0.43 |
| LV mass index (g/m2) |
95 ± 30 |
56 ± 13 |
<0.001 |
| Aortic valve area (cm2) |
0.84 ± 0.10 |
4.08 ± 0.73 |
<0.001 |
| LGE present, n (%) |
22 (79) |
- |
- |
| LGE volume when positive |
|
|
|
| Mass (g) |
33.2 (17.1-61.8) |
- |
- |
| Percentage myocardium (%) | 19.7 ± 11.0 | - | - |
Values are mean ± SD, percentages or median (interquartile range). BOLD, Blood oxygen level dependent; LV, Left ventricular; LGE, Late gadolinium enhancement.