Table 1.
Characteristic feature values found for vascular, petechiae, trophic changes, and trauma macules.
| Macule | Vascular (n=47) | Petechiae (n=10) | Due to trophic changes (n=10) | Due to trauma (n=15) |
|---|---|---|---|---|
| Morphologic properties | ||||
| Area (pixels) | 1010.29 ± 1893.99 | 18.50 ± 5.99 | 2152.90 ± 1541.85 | 2133.60 ± 3684.09 |
| Major axis (pixels) | 46.97 ± 48.96 | 6.48 ± 1.60 | 109.97 ± 54.13 | 59.08 ± 63.30 |
| Minor axis (pixels) | 23.76 ± 17.75 | 3.88 ± 1.08 | 30.67 ± 13.49 | 29.85 ± 24.87 |
| Perimeter (pixels) | 143.90 ± 154.46 | 15.83 ± 4.76 | 289.46 ± 116.72 | 166.16 ± 173.27 |
| Solidity (%) | 72.56 ± 12.76 | 88.00 ± 12.97 | 70.40 ± 11.96 | 79.87 ± 9.31 |
| Intensity properties | ||||
| Maximum intensity | 0.55 ± 0.18 | 0.61 ± 0.14 | 0.47 ± 0.16 | 0.62 ± 0.13 |
| Minimum intensity | 0.35 ± 0.18 | 0.55 ± 0.14 | 0.28 ± 0.19 | 0.31 ± 0.21 |
| Shade index | ||||
| ShIR | 0.90 ± 0.06 | 0.95 ± 0.03 | 0.88 ± 0.07 | 0.86 ± 0.08 |
| ShIG | 0.84 ± 0.08 | 0.90 ± 0.07 | 0.84 ± 0.09 | 0.74 ± 0.14 |
| ShIB | 0.82 ± 0.11 | 0.87 ± 0.09 | 0.84 ± 0.08 | 0.68 ± 0.15 |
| ShIBR | 0.87 ± 0.11 | 0.92 ± 0.04 | 0.87 ± 0.07 | 0.79 ± 0.10 |