Table 2. Comparison of preoperative CTA measurements between the SBSG and ISF groups.
| CTA parameter (mm) | SBSG (n=67) | ISF (n=21) | P |
|---|---|---|---|
| Diameter of the DAo at the opening of the LSA | 26.17±4.30 | 25.76±4.58 | 0.708 |
| Diameter of the DAo at the level of the diaphragm | 29.02±3.90 | 30.61±4.24 | 0.126 |
| Distance between the LSA and LCCA | 15.16±3.01 | 14.08±3.07 | 0.157 |
| Distance between the LSA and VA | 36.52±9.98 | 38.75±6.61 | 0.342 |
| Preoperative maximal true-lumen diameter of the DAo | 20.26±8.79 | 17.01±6.85 | 0.125 |
| Preoperative maximal false-lumen diameter of the DAo | 19.84±7.90 | 20.96±6.72 | 0.560 |
Data are expressed as the mean ± SD. CTA, computed tomography angiography; SBSG, single-branched stent graft; ISF, in situ fenestration; DAo, descending aorta; LSA, left subclavian artery; LCCA, left common carotid artery; VA, vertebral artery; SD, standard deviation.