Table 5.
CMR LV and Aortic Measurements
| Surgery (n=28) | Balloon Dilation (n=23) | Stent (n=24) | P Value | |
|---|---|---|---|---|
| LV measurements | ||||
| EDV, mL/m2 | 71±13 | 76±17 | 73±18 | 0.64 |
| Ejection fraction, % | 63±6 | 61±5 | 62±5 | 0.52 |
| Mass, g/m2 | 56±13 | 58±9 | 57±13 | 0.83 |
| Aortic diameters (mm/BSA0.5) | ||||
| Ascending aorta | 19.1±3.0 | 20.6±3.2 | 20.7±3.4 | 0.18 |
| Proximal transverse arch | 12.6±1.2 | 12.8±1.8 | 12.7±2.9 | 0.96 |
| Distal transverse arch | 11.5±1.7 | 11.2±1.6 | 11.9±2.1 | 0.45 |
| Isthmus | 12.6±3.7 | 10.4±2.8 | N/Aa | 0.03 |
| Descending aorta | 12.4±1.1 | 12.6±1.8 | 12.5±1.6 | 0.95 |
| Arch shape | 0.33 | |||
| Romanesque | 11 (39%) | 10 (43%) | 10 (42%) | |
| Crenel | 2 (7%) | 5 (22%) | 2 (8%) | |
| Gothic | 14 (50%) | 6 (26%) | 12 (50%) | |
| Arch Shape Index | 0.64±0.14 | 0.65±0.11 | 0.68±0.13 | 0.64 |
Values are mean±SD, or number (percent). Arch Shape Index indicates aortic arch height divided by width; BSA, body surface area; CMR, cardiac magnetic resonance imaging; EDV, end‐diastolic volume; LV, left ventricular.
a
N/A=not available, because of presence of stent artifact.