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Comparison of superior arch and tracheal stenosis
| Group | case | the diameter of tracheal stenosis (mm) | the length of tracheal stenosis (mm) | tracheal stenosis index(%) |
|---|---|---|---|---|
| Left superior arch | 6 | 3.30 ± 1.59 | 8.28 ± 2.35 | 39.27 ± 12.53 |
| Right superior arch | 18 | 3.43 ± 0.90 | 8.29 ± 3.14 | 53.78 ± 44.74 |
| t | −0.149 | 0.842 | −0.942 | |
| P | > 0.05(0.887) | > 0.05(0.438) | > 0.05(0.389) |
