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. 2011 Apr;84(1000):293–303. doi: 10.1259/bjr/69070614

Table 3. Reported values of weighted CT dose index (CTDIw ) and corresponding diagnostic reference level (DRL).

CT examination Median CTDIw (mGy) CTDIw range (mGy) DRL (mGy) [12]
Head 52.0 17.0–181.0 60
Chest 18.6 3.0–86.0 30
Abdomen 22.0 4.0–166.9 35
Pelvis 23.0 4.0–107.4 35
Cervical spine 44.3 5.3–103.2
Lumbar spine 30.3 10.6–59.7