| Classification | Arterial | Venous | Delayed |
| Pseudoaneurysm | Increased caliber. Density tracks adjacent arteries | Decreased density, tracking adjacent arteries | |
| Arteriovenous fistula | Early venous enhancement, enlarged veins | Enlarged veins, tracking arterial density | |
| Aretrioportal fistula | Hyperenhancement of liver supplied by affected portal branch | ||
| Dissection | Decreased, irregular caliber, may have distal occlusion or embolism | Density tracks adjacent arteries | |
| Spasm | Decreased caliber with regular cross-section | Density may track aorta or be increased due to slow flow | |
| Laceration- Arterial | Irregular cross section, variable size, active extravasation | Decreased vascular density, Increased extravasation | Decreased density of hematoma due to dilution |
| Laceration- Venous | Hematoma, but no enhancement | New enhancing extravasation | Additional enhancement |
| Transection- Arterial | Abrupt termination, active extravasation | Increased extravasation, stable to decreased density | Decreased density of hematoma due to dilution |
| Transection- Venous | Hematoma, but no enhancement | New enhancing extravasation | Additional enhancement |
Reference:
Robinson, J. D., et al. (2016). “Imaging of Blunt Abdominal Solid Organ Trauma.” Semin Roentgenol 51(3): 215-229.