Table 2:
Absolute values of WSS, OSI, velocity and pressure for IA, obtained using BCs derived from healthy volunteers and measurements taken in CoA patient by pc-MR
| Hemodynamic Indices | BCs derived from healthy volunteers (without CoA) | BCs derived from patient (with CoA) | % difference |
|---|---|---|---|
| Max t-ave velocity (m/s) | 0.5 | 0.72 | +44 |
| Space and t-ave velocity (m/s) | 0.072 | 0.097 | +35 |
| Max OSI | 0.3 | 0.3 | 0 |
| Area of WSS below 0.4 Pa (mm2) | 0.05 (0.3%) | 0.03 (0.2%) | −34 |
| Area of WSS above 15 Pa (mm2) | 0.4 (0.4%) | 3.0 (17.2%) | +650 |
| Space and t-ave WSS in aneurysm (Pa) | 5.7 | 9.4 | +65 |
| Max pressure on aneurysm wall (mmHg)* | 122.4 | 140.8 | +15 |
| Area of elevated pressure (mm2)* | 3.0 (17.1%) | 1.5 (8.5%) | −50% |
NB: WSS; wall shear stress, OSI; oscillatory shear index, Max; maximum, ave; average, t; time, BC; boundary condition,
*
indicates the values at peak systole