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Effect of a reduced field of view (FOV) on effective dose (6 × 6 to 4 × 4 cm)
| Reference | FOV position | Dose reduction (%)a |
|---|---|---|
| Current study | Anterior maxilla | 52 |
| Hirsch et al6 | Anterior maxilla | 54 |
| Current study | Lower molar | 32 |
| Okano et al3 | Lower molar | 51 |
Relative reduction of the tube current exposure time product-normalized effective dose of a 4 × 4-cm FOV compared with a 6 × 6-cm FOV.
