Research Article
Quantitative Analysis of Contrast-Enhanced Ultrasound That Can Be Used to Evaluate Angiogenesis during Patellar Tendon Healing in Rats
Table 1
Summary of ultrasonic, histologic, and biomechanical assessment in the control, day 7, 14, and 28 (Mean ± SD).
| Measurements | Control | Day 7 | Day 14 | Day 28 | value |
| Maximum thickness (mm) | 0.67 ± 0.10 | 2.20 ± 0.59 | 2.31 ± 0.35 | 2.31 ± 0.28 | <0.001 | PI (AU, ×10−8) | 3.16 ± 0.22 | 11.19 ± 2.14 | 6.18 ± 1.68 | 4.15 ± 0.74 | <0.001 | AUC (AU.s, ×10−8) | — | 440.10 ± 359.06 | 270.90 ± 259.28 | 132.90 ± 142.72 | 0.053 | TTP (s) | — | 4.15 ± 0.74 | 4.91 ± 2.54 | 9.22 ± 7.37 | 0.132 | Slope (AU/s, ×10−8) | — | 17.91 ± 48.16 | 4.19 ± 4.08 | 1.57 ± 1.79 | 0.061 | Microvessel diameter (μm) | — | 6.97 ± 3.13 | 6.68 ± 4.07 | 7.05 ± 2.47 | 0.068 | CD31 area (%) | 0.06 ± 0.03 | 1.31 ± 0.49 | 0.62 ± 0.31 | 0.38 ± 0.33 | <0.001 | Failure load (N) | 60.15 ± 13.77 | 17.38 ± 8.02 | 34.33 ± 10.25 | 55.58 ± 17.70 | <0.001 | Tensile strength (MPa) | 5.57 ± 2.27 | 0.72 ± 0.57 | 2.37 ± 1.42 | 5.27 ± 2.87 | <0.001 |
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This value was the mean (±SD) of the highest values of the BI. |