UW Emergency Radiology
Crawford Classification of Thoraco-abdominal Aneurysms
| Classification | Description | Notes |
| Type 1 | From the origin of the left subclavian to the suprarenal abdominal aorta | |
| Type 2 | From the subclavian to the aortoiliac bifurcation | |
| Type 3 | Distal thoracic aorta to the aortoiliac bifurcation | |
| Type 4 | Limited to the abdominal aorta below the diaphragm |
Reference:
Crawford, E. S. and J. S. Coselli (1991). “Thoracoabdominal aneurysm surgery.” Semin Thorac Cardiovasc Surg 3(4): 300-322.