Paediatric CT dose: a multicentre audit of subspecialty practice in Australia and New Zealand

Abstract

• SSDEs can be calculated for all patients, CT systems, and practices • Kilovoltage peak (kVp) has the greatest association with dose in similar-sized patients • Paediatric DRRs for CT are now available for use internationally.

Establishment of Local Diagnostic Reference Levels of Pediatric Abdominopelvic and Chest CT Examinations Based on the Body Weight and Size in Korea

“…Table 4 shows the distribution of effective doses. A comparison of DRLs obtained from this study with published DRLs is shown in Table 5 [ 9 14 15 16 18 19 20 21 ]. In our study, for the body weight of 5, 15, 30, 50, and 80 kg, CTDI vol of DRLs were 1.4, 2.2, 2.7, 4.0, and 4.7 mGy, respectively, for abdominopelvic CT and 1.2, 1.5, 2.3, 3.7, and 5.8 mGy, respectively, for chest CT.…”

“…In our study, all hospitals used CT protocols designed according to the patient's body weight, and none of the hospitals used the body size or X-ray attenuation characteristics. Few studies conducted dose surveys for pediatric CT examinations by grouping patients according to the body size [ 14 15 16 ].…”

“…Second, data were grouped by using effective diameter as follows: < 13 cm; 14–16 cm; 17–20 cm; 21–24 cm; and > 24 cm. Since previously published DRLs with grouping of data by the body size used the lateral dimensions, 15, 19, 24, and 29 cm, the equivalent effective diameter was approximated from the American Association of Physicists in Medicine (AAPM) 204 report [ 14 15 16 17 ]. Third, age was used for grouping of dose data for comparison with other DRLs as follows: 0, < 1 month; 1 year, 1 month to < 1 year; 5 years, 1 to < 5 years; 10 years, 5 to < 10 years, and 15 years, 10 to < 15 years.…”

Imaging of the temporal bone in children using low‐dose 320‐row area detector computed tomography

“…There are reports available from several countries on the radiation dose used for temporal bone CT in children. A multicenter study showed that the median CTDI vol for temporal bone CT in children aged 1–5 years was 34 mGy in Australia and New Zealand . The third quartile value for CTDI vol in children aged 1–5 years was reported to be 66 mGy in Belgium and 71 mGy in France .…”

“…A multicenter study showed that the median CTDI vol for temporal bone CT in children aged 1-5 years was 34 mGy in Australia and New Zealand. 11 The third quartile value for CTDI vol in children aged 1-5 years was reported to be 66 mGy in Belgium 12 and 71 mGy in France. 13 Recently, the mean CTDI vol and DLP for temporal bone CT in children aged 1-5 years at a tertiary children's hospital in Japan was reported to be 21 mGy and 151 mGyÁcm, respectively.…”