Table 2 Dose-length product (DLP) and volumetric computed tomography dose index (CTDIvol) for the study common name “CT Chest WO”: data from individual hospitals, total and reference values
From: Analysis of a multicentre cloud-based CT dosimetric database: preliminary results
Number of exams/number of scanners | DLP (mGy × cm) Median (25th–75th percentile) | CTDIvol (mGy) Median (25th–75th percentile) | |
|---|---|---|---|
Hospital 1 | 3,513/5 | 268 (194–335) | 7.4 (5.9–8.5) |
Hospital 2 | 1,003/2 | 323 (232–468) | 7.1 (5.9–8.8) |
Hospital 3 | 2,026/4 | 247 (169–345) | 6.1 (4.9–8.5) |
Total | 6,542/11 | 268 (190–349) | 7.0 (5.4–8.5) |
ISTISAN 17/33 [18] | 754 | 15.0 | |
RP 180 [19] | 400 (270–700)* | 10 (10–30)* | |
Canadian survey [20] | 302 (197–440) | 8.5 (5.7–13.0) | |