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ACR DIR dose reference levels
| Reference size range (cm) | No. of patients | Achieveable dose (mGy) | Diagnostic reference level (mGy) |
|---|---|---|---|
| 21-25 | 29691 | 7 | 9 |
| 25-29 | 82822 | 9 | 11 |
| 29-33 | 108921 | 12 | 15 |
| 33-37 | 76681 | 17 | 21 |
| 37-41 | 30640 | 21 | 24 |
Data collated from Kanal and colleagues [3]
Note- Size was measured as water-equivalent-diameter. Achievable dose is the 50th percentile among surveyed facilities. Diagnostic reference level is the 75th percentile among surveyed facilities.
