TABLE I.
Differences between mean, STD, quartiles, and 95 percentile of HU distribution and vfl for wCT vs wCT2 and wCT2-c, for all bladder fullness levels.
| ΔHU | Δvfl (mm) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Image | Bladder fullness | Mean | STD | Q1 | Median | Q3 | 95% | Mean | STD | Median | 95% |
| First deformation | |||||||||||
| Whole | |||||||||||
| wCT2 | Full | 105.3 | 211.7 | 6.0 | 13.0 | 41.0 | 617.0 | 11.7 | 8.2 | 9.6 | 28.9 |
| Half full | 98.9 | 211.5 | 6.0 | 13.0 | 36.0 | 629.0 | 9.9 | 7.0 | 8.2 | 23.8 | |
| Empty | 107.8 | 216.7 | 5.0 | 13.0 | 49.0 | 637.0 | 10.5 | 7.8 | 8.7 | 26.8 | |
| wCT2-c | Full | 40.9 | 131.9 | 4.0 | 9.0 | 18.0 | 177.0 | 3.8 | 4.4 | 2.3 | 10.4 |
| Half full | 42.5 | 134.3 | 4.0 | 9.0 | 19.0 | 199.0 | 3.5 | 4.1 | 2.0 | 10.2 | |
| Empty | 41.4 | 132.8 | 4.0 | 9.0 | 18.0 | 189.0 | 3.4 | 4.0 | 2.0 | 9.8 | |
| Bones | |||||||||||
| wCT2 | Full | 212.5 | 199.4 | 62.0 | 151.0 | 302.0 | 632.0 | 8.5 | 5.1 | 8.0 | 17.7 |
| Half full | 203.2 | 194.7 | 56.0 | 141.0 | 290.0 | 612.0 | 7.6 | 4.8 | 7.1 | 15.6 | |
| Empty | 213.3 | 199.9 | 62.0 | 152.0 | 302.0 | 632.0 | 8.5 | 5.5 | 7.7 | 18.5 | |
| wCT2-c | Full | 83.8 | 113.4 | 17.0 | 42.0 | 104.0 | 316.0 | 1.2 | 0.4 | 1.2 | 2.0 |
| Half full | 89.1 | 114.6 | 19.0 | 46.0 | 112.0 | 329.0 | 1.2 | 0.3 | 1.2 | 1.7 | |
| Empty | 83.0 | 108.2 | 17.0 | 43.0 | 105.0 | 308.0 | 1.2 | 0.3 | 1.2 | 1.7 | |
| Prostate | |||||||||||
| wCT2 | Full | 56.9 | 121.2 | 12.0 | 21.0 | 34.0 | 313.0 | 10.8 | 7.5 | 8.9 | 26.8 |
| Half full | 53.5 | 115.8 | 12.0 | 20.0 | 33.0 | 285.0 | 9.2 | 6.1 | 7.8 | 21.6 | |
| Empty | 58.9 | 124.7 | 12.0 | 21.0 | 35.0 | 327.0 | 10.0 | 7.1 | 8.3 | 25.3 | |
| wCT2-c | Full | 22.4 | 38.5 | 8.0 | 16.0 | 25.0 | 50.0 | 2.5 | 2.7 | 1.6 | 6.9 |
| Half full | 23.0 | 38.4 | 8.0 | 16.0 | 25.0 | 53.0 | 2.2 | 1.9 | 1.5 | 6.6 | |
| Empty | 22.2 | 37.2 | 8.0 | 15.0 | 24.0 | 52.0 | 2.1 | 1.8 | 1.4 | 6.2 | |
| Second deformation | |||||||||||
| Whole | |||||||||||
| wCT2 | Full | 106.8 | 228.9 | 6.0 | 13.0 | 37.0 | 685.0 | 11.2 | 6.9 | 9.8 | 25.0 |
| Half full | 112.2 | 235.9 | 6.0 | 13.0 | 40.0 | 716.0 | 11.1 | 7.1 | 9.5 | 24.9 | |
| Empty | 119.5 | 242.4 | 6.0 | 13.0 | 51.0 | 738.0 | 11.3 | 7.3 | 9.6 | 25.9 | |
| wCT2-c | Full | 56.3 | 177.3 | 4.0 | 10.0 | 20.0 | 307.0 | 3.8 | 4.2 | 2.7 | 9.6 |
| Half full | 57.9 | 178.7 | 4.0 | 10.0 | 21.0 | 332.0 | 3.6 | 3.9 | 2.7 | 8.6 | |
| Empty | 57.1 | 177.1 | 4.0 | 10.0 | 20.0 | 319.0 | 3.7 | 3.9 | 2.7 | 8.9 | |
| Bones | |||||||||||
| wCT2 | Full | 225.2 | 217.5 | 69.0 | 160.0 | 313.0 | 666.0 | 9.4 | 5.5 | 8.8 | 19.3 |
| Half full | 226.7 | 218.5 | 69.0 | 161.0 | 315.0 | 669.0 | 9.4 | 5.7 | 8.5 | 19.7 | |
| Empty | 227.7 | 219.0 | 69.0 | 163.0 | 316.0 | 669.0 | 9.6 | 6.0 | 8.6 | 20.8 | |
| wCT2-c | Full | 90.7 | 137.3 | 17.0 | 43.0 | 108.0 | 339.0 | 1.5 | 1.1 | 1.3 | 2.9 |
| Half full | 95.0 | 133.4 | 19.0 | 47.0 | 118.0 | 353.0 | 1.5 | 0.9 | 1.4 | 2.9 | |
| Empty | 90.1 | 126.3 | 18.0 | 45.0 | 113.0 | 331.0 | 1.6 | 1.1 | 1.4 | 3.3 | |
| Prostate | |||||||||||
| wCT2 | Full | 59.2 | 134.5 | 12.0 | 21.0 | 34.0 | 306.0 | 11.2 | 6.6 | 9.9 | 24.6 |
| Half full | 61.0 | 137.8 | 12.0 | 21.0 | 35.0 | 323.0 | 10.9 | 6.7 | 9.5 | 24.6 | |
| Empty | 64.0 | 141.7 | 12.0 | 21.0 | 36.0 | 346.0 | 11.1 | 7.0 | 9.5 | 25.8 | |
| wCT2-c | Full | 26.9 | 73.5 | 8.0 | 16.0 | 26.0 | 55.0 | 2.9 | 2.3 | 2.1 | 7.5 |
| Half full | 25.1 | 54.0 | 9.0 | 16.0 | 26.0 | 56.0 | 2.7 | 1.9 | 2.1 | 6.6 | |
| Empty | 24.7 | 52.6 | 8.0 | 16.0 | 25.0 | 58.0 | 2.8 | 2.0 | 2.0 | 7.0 | |