Table 2.
Best-fit values of model parameters for the four-fiber family model of the passive unloading behavior of common carotid arteries from n = 16 male control mice (cf Table 1). Shown in particular are comparisons of mean values based on fits to the individual specimens versus values based on fits to the averaged data. Also shown are comparisons for fits to the averaged data wherein different extents and types of data were used. See Figure 5 for associated implications of three particular approaches to calculate the stored energy and components of the linearized stiffness.
| Elastic Fibers | Axial Collagen | Circumferential Collagen | Diagonal Collagen | Error | |||||
|---|---|---|---|---|---|---|---|---|---|
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| Averaging | c (kPa) | c11 (kPa) | c21 | c12 (kPa) | c22 | c13,4 (kPa) | c23,4 | a0 | RMSE |
| Data | 8.633 | 9.340 | 0.137 | 4.447 | 0.046 | 0.015 | 1.193 | 28.892 | 0.098 |
| Parameters | 9.028 | 10.554 | 0.172 | 4.572 | 0.056 | 0.695 | 1.270 | 31.080 | 0.117 |
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| Data Analysis | |||||||||
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| P-d, f-l | 8.633 | 9.340 | 0.137 | 4.447 | 0.046 | 0.015 | 1.193 | 28.892 | 0.098 |
| P-d, f | 9.598 | 12.402 | 0.054 | 3.215 | 0.060 | 0.013 | 1.241 | 30.966 | 0.068 |
| P-d | 7.628 | 3.251 | 1.056 | 6.426 | 6.68 × 10-9 | 9.91 × 10-5 | 1.646 | 43.144 | 0.059 |