Table 1 Human kidney vascular branching metrics by truncated Strahler generation (means with standard deviation are shown)
Truncated Strahler order | No. of segments | Radium (µm) | Length µm × 103 | Tortuosity | Length:diameter | Vol. × 108 µm3 | Branching angle o | IVD µm × 103 |
|---|---|---|---|---|---|---|---|---|
1 | 5105 | 45 ± 5 | 2.6 ± 1.7 | 1.2 ± 0.20 | 57.4 ± 36 | 0.18 ± 0.22 | 129 ± 28 | 1.1 ± 0.4 |
2 | 3030 | 56 ± 15 | 1.8 ± 1.4 | 1.1 ± 0.16 | 32.3 ± 26 | 0.21 ± 0.46 | 128 ± 29 | 0.9 ± 0.4 |
3 | 1295 | 95 ± 37 | 1.8 ± 1.4 | 1.1 ± 0.14 | 20.2 ± 18 | 6.7 ± 10.3 | 128 ± 29 | 1.1 ± 0.4 |
4 | 516 | 165 ± 60 | 2.3 ± 1.9 | 1.1 ± 0.13 | 14.6 ± 12 | 25.5 ± 34.9 | 135 ± 29 | 1.4 ± 0.5 |
5 | 150 | 294 ± 110 | 3.3 ± 2.6 | 1.1 ± 0.05 | 12.2 ± 9.4 | 11.3 ± 17.1 | 142 ± 25 | 1.8 ± 0.7 |
6 | 69 | 684 ± 250 | 4.3 ± 3.1 | 1.1 ± 0.06 | 6.5 ± 4.5 | 84.6 ± 104 | 149 ± 21 | 2.9 ± 0.7 |
7 | 20 | 839 ± 251 | 7.2 ± 4.9 | 1.1 ± 0.05 | 8.5 ± 4.8 | 223 ± 302 | 148 ± 24 | 6.1 ± 1.5 |
8 | 4 | 877 ± 188 | 8.1 ± 4.7 | 1.1 ± 0.07 | 9.6 ± 6.3 | 227 ± 159 | 141 ± 6 | 4.7 ± 1.5 |
9 | 1 | 2923 | 669 | 1.0 | 0.2 | 180 | - | - |