Table 2.
Eye bulb volumes of the segmented images before (left) and after (right) normalization
| Subj. | Realigned only | Normalized | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size bulb (voxel) | Size (mm3) | Size bulb (voxel) | Size (mm3) | |||||||||||||
| Left | SD | Right | SD | Left | SD | Right | SD | Left | SD | Right | SD | Left | SD | Right | SD | |
| 1 | 218.3 | 14.2 | 255.3 | 15.9 | 5893.7 | 382.6 | 6894.3 | 428.3 | 223.3 | 22.9 | 236.3 | 18.0 | 6029.6 | 618.0 | 6379.3 | 485.1 |
| 2 | 246.0 | 45.0 | 294.4 | 26.6 | 6642.6 | 1214.8 | 7948.6 | 719.3 | 256.1 | 31.3 | 244.0 | 23.1 | 6915.1 | 846.4 | 6587.1 | 622.7 |
| 3 | 153.7 | 16.4 | 172.7 | 21.6 | 4148.7 | 443.7 | 4664.2 | 584.3 | 213.5 | 75.7 | 227.7 | 95.4 | 5764.6 | 2044.5 | 6146.8 | 2574.9 |
| 4 | 315.6 | 47.7 | 382.0 | 33.2 | 8521.1 | 1288.8 | 10313.0 | 896.7 | 308.1 | 56.1 | 305.5 | 35.7 | 8319.4 | 1515.9 | 8248.1 | 962.7 |
| 5 | 372.8 | 31.6 | 377.2 | 43.7 | 10066.3 | 852.9 | 10183.1 | 1179.0 | 348.7 | 42.6 | 319.5 | 36.1 | 9414.2 | 1150.1 | 8627.2 | 975.9 |
| 6 | 289.8 | 37.8 | 334.6 | 36.7 | 7823.4 | 1020.3 | 9032.9 | 991.5 | 287.3 | 28.8 | 298.2 | 26.6 | 7758.1 | 777.6 | 8050.6 | 718.5 |
| 7 | 303.5 | 34.4 | 382.6 | 32.5 | 8195.1 | 928.9 | 10330.5 | 876.5 | 293.8 | 35.5 | 332.2 | 32.7 | 7932.1 | 958.6 | 8968.3 | 883.1 |
| 8 | 150.4 | 11.9 | 159.8 | 16.9 | 4059.5 | 320.8 | 4315.5 | 456.8 | 248.6 | 23.0 | 251.0 | 21.1 | 6711.3 | 621.2 | 6778.2 | 569.2 |
| 9 | 172.1 | 13.0 | 105.8 | 16.9 | 4646.3 | 352.1 | 2857.3 | 457.2 | 235.2 | 28.3 | 202.5 | 28.6 | 6349.3 | 762.8 | 5467.6 | 772.8 |
| 10 | 281.2 | 13.0 | 157.6 | 16.9 | 7592.6 | 352.1 | 4254.8 | 457.2 | 283.9 | 29.9 | 215.4 | 28.4 | 7665.7 | 808.3 | 5814.7 | 765.6 |
| 11 | 261.0 | 49.0 | 354.5 | 42.3 | 7047.4 | 1322.1 | 9572.1 | 1143.4 | 265.1 | 38.1 | 301.0 | 26.6 | 7157.6 | 1029.1 | 8126.9 | 717.6 |
| 12 | 327.9 | 30.6 | 279.2 | 22.9 | 8853.6 | 827.4 | 7539.0 | 618.7 | 293.0 | 38.1 | 254.5 | 17.4 | 7911.2 | 1030.0 | 6872.6 | 471.1 |
| 13 | 235.2 | 69.4 | 240.0 | 70.8 | 6351.7 | 1875.0 | 6479.9 | 1911.6 | 266.7 | 54.1 | 261.1 | 72.6 | 7201.2 | 1461.0 | 7050.0 | 1959.4 |
| 14 | 226.0 | 28.9 | 262.8 | 24.3 | 6101.6 | 780.6 | 7094.8 | 656.4 | 270.0 | 38.4 | 269.9 | 27.5 | 7289.9 | 1036.5 | 7287.8 | 743.0 |
| MW | 256 ± 64 | 269 ± 89 | 6911 ± 1736 | 7260 ± 2404 | 271 ± 34 | 265 ± 39 | 7318 ± 927 | 7163 ± 1043 | ||||||||
Images were recorded with a 3 × 3 × 3 mm resolution; therefore, the conversion factor from voxel volume to mm3 is 27. There was no significant difference between the bulb volumes before and after normalization (at p ≤ 0.05); however, volumes were correlated with 0.92 for the left and right eyes