Table 1.
| Age (yo) | Location | Inner Radius (10−3 m) | Wall Thickness (10−3 m) | MAP (mmHg) | EP (mmHg) | In vivo Axial Stretch | In vivo Circ. Stretch | Kθθθθ (106 Pa) | KΖΖΖΖ (106 Pa) |
|---|---|---|---|---|---|---|---|---|---|
| 30 | ATA | 13.2 | 1.80 | 89 | - | - | - | - | - |
| DTA | 9.60 | 1.76 | 89 | - | - | - | - | - | |
| IAA | 7.81 | 1.14 | 91 | - | - | - | - | - | |
| 40 | ATA | 14.07 | 2.00 | 93 | 7 | 1.15 | 1.34 | 0.40 | 0.28 |
| DTA | 11.63 | 1.70 | 93 | 2 | 1.17 | 1.24 | 0.50 | 0.46 | |
| IAA | 8.24 | 1.05 | 95 | 0 | 1.23 | 1.24 | 1.46 | 1.30 | |
| 60 | ATA | 16.13 | 2.45 | 95 | 17 | 1.08 | 1.22 | 0.75 | 0.27 |
| DTA | 12.08 | 1.90 | 95 | 12 | 1.09 | 1.21 | 0.71 | 0.64 | |
| IAA | 8.27 | 1.50 | 97 | 0 | 1.09 | 1.12 | 1.66 | 1.51 | |
| 75 | ATA | 16.25 | 2.90 | 102 | 15 | 1.03 | 1.14 | 0.91 | 0.41 |
| DTA | 12.71 | 2.15 | 102 | 10 | 1.03 | 1.22 | 1.02 | 0.58 | |
| IAA | 8.98 | 1.92 | 105 | 0 | 1.04 | 1.01 | 2.14 | 1.97 |
Geometric parameters (inner radius) and wall properties (material stiffness and wall thickness) calculated at a transmural pressure given by the difference between mean arterial pressure (MAP) and external pressure (EP). Also listed are the in vivo axial and circumferential stretches as a function of three ages and locations, namely, the ascending thoracic aorta (ATA), proximal descending thoracic aorta (DTA), and infrarenal abdominal aorta (IAA). Material stiffness K is given in circumferential (θ) and axial (Ζ) directions.