| Result of the thoracic angioscan | Numbers | Percentage | |
| Siege of the dissection | Ascending | 10 | 43.5 |
| Descending | 13 | 56.5 | |
| False channel | 11 | 47.8 | |
| Aneurysm | Abdominal aorta | 5 | 21.7 |
| Ascending aorta | 3 | 13 | |
| Descending aorta | 2 | 8.7 | |
| Extension of the dissection | Iliac | 5 | 21.7 |
| Renal | 4 | 17.4 | |
| Inferior member | 1 | 4.3 | |