Table 2 Human kidney vascular branching metrics compartmentalised by spatial zone with the organ

Volume of tissue, ×10¹³ µm³ (% of total)

8.70 (63.7%)

3.21 (23.5%)

1.18 (8.66%)

0.57 (4.14%)

13.7 (100%)

Number of segments* (% of total)

6141 (60.27%)

554 (5.4%)

151 (1.5%)

727 (7.1%)

10,190 (100%)

Mean segment length, µm ± STD

1999 ± 1374

1493 ± 1113

3993 ± 3568

1720 ± 1386

2260 ± 1720

Mean segment radius, µm ± STD

48 ± 12.6

95 ± 49

496 ± 335

136 ± 80

71 ± 87

Mean inter-vessel distances, ×10³ µm ± STD

1.10 ± 0.677

1.55 ± 0.881

1.55 ± 1.312

0.664 ± 0.543

1.2 ± 0.833

Mean segment volume, ×10⁸ µm³ ± STD

0.148 ± 0.116

0.623 ± 1.12

69.0 ± 147

1.73 ± 4.48

1.65 ± 20.6

Mean segment tortuosity ± STD

1.14 ± 0.17

1.08 ± 0.13

1.08 ± 0.1

1.1 ± 0.12

1.15 ± 0.18