| Origin of the thoracoacromial artery | Huelke | De Garis and Swartley | This study |
| Direct from first part AA | 29.8% | 85.7% | 1.6% (2/120) |
| Direct from second part AA | 68.5% | 12.1% | 98.4% (118/120) |
| From the SSA | - | 1.2% | 3.2% (4/120) |
| Common stem with SSA | - | - | 0.8% (1/120) |
| Common stem with SSA and LTA | - | - | 2.4% (3/120) |