Effects of starting point of scanning on the lens dose
| CT Scanner (Number of Detector Rows) | Scans from Orbitomeatal Line | Scans from Superior Orbital Rim | ||||
|---|---|---|---|---|---|---|
| DOM (mGy) | DOM/DIOR (%) | DOM/CTDIvol (%) | DSOR (mGy) | DSOR/DIOR (%) | DSOR/CTDIvol (%) | |
| Aquilion 64 (64) | 89.9 ± 4.4 | 86.9 | 79.3 | 12.2 ± 0.6 | 11.8 | 10.8 |
| LightSpeed VCT (64) | 64.5 ± 1.5 | 79.1 | 60.3 | 11.0 ± 0.7 | 13.5 | 10.4 |
| LightSpeed Ultra 16 (16) | 57.9 ± 0.9 | 81.0 | 67.5 | 9.2 ± 0.2 | 12.9 | 10.7 |
| LightSpeed Ultra 8 (8) | 52.2 ± 1.6 | 92.2 | 78.5 | 7.7 ± 0.3 | 13.6 | 11.6 |
| LightSpeed QX/i (4) | 64.6 ± 0.6 | 92.0 | 86.0 | 10.3 ± 0.2 | 14.7 | 13.7 |
| Brilliance CT 64 (64) | 56.9 ± 2.1 | 92.2 | 78.6 | 12.9 ± 0.6 | 20.9 | 17.8 |
| MX 8000 IDT (16) | 44.6 ± 3.7 | 92.7 | 86.1 | 7.1 ± 0.3 | 14.8 | 13.7 |
| Somatom Sensation Cardiac 64 (64) | 42.2 ± 0.4 | 87.2 | 71.8 | 8.9 ± 0.8 | 8.4 | 15.2 |