PMID- 25380999 OWN - NLM STAT- MEDLINE DCOM- 20160413 LR - 20181113 IS - 1432-1998 (Electronic) IS - 0301-0449 (Linking) VI - 45 IP - 5 DP - 2015 Apr TI - Radiation dose from multidetector CT studies in children: results from the first Italian nationwide survey. PG - 695-705 LID - 10.1007/s00247-014-3201-z [doi] AB - BACKGROUND: Multidetector CT (MDCT) scanners have contributed to the widespread use of CT in paediatric imaging. However, concerns are raised for the associated radiation exposure. Very few surveys on radiation exposure from MDCT studies in children are available. OBJECTIVE: The aim of this study was to outline the status of radiation exposure in children from MDCT practice in Italy. MATERIALS AND METHODS: In this retrospective multicentre study we asked Italian radiology units with an MDCT scanner with at least 16 slices to provide dosimetric and acquisition parameters of CT examinations in three age groups (1-5, 6-10, 11-15 years) for studies of head, chest and abdomen. The dosimetric results were reported in terms of third-quartile volumetric CT dose index (CTDIvol) (mGy), size-specific dose estimate (SSDE) (mGy), dose length product (DLP) (mGy cm), and total DLP for multiphase studies. These results were compared with paediatric European and adult Italian published data. A multivariate analysis assessed the association of CTDIvol with patient characteristics and scanning modalities. RESULTS: We collected data from 993 MDCT examinations performed at 25 centres. For age groups 1-5 years, 6-10 years and 11-15 years, the CTDIvol, DLP and total DLP values were statistically significantly below the values observed in our analogous national survey in adults, although the difference decreased with increasing age. CTDIvol variability among centres was statistically significant (variance = 0.07; 95% confidence interval = 0.03-0.16; P < 0.001). CONCLUSIONS: This study reviewed practice in Italian centres performing paediatric imaging with MDCT scanners. The variability of doses among centres suggests that the use of standardised CT protocols should be encouraged. FAU - Granata, Claudio AU - Granata C AD - Department of Radiology, IRCCS Istituto Giannina Gaslini, Largo Gaslini, 16147, Genoa, Italy, cgranata@sirm.org. FAU - Origgi, Daniela AU - Origgi D FAU - Palorini, Federica AU - Palorini F FAU - Matranga, Domenica AU - Matranga D FAU - Salerno, Sergio AU - Salerno S LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20141108 PL - Germany TA - Pediatr Radiol JT - Pediatric radiology JID - 0365332 SB - IM MH - Adolescent MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Infant MH - Italy MH - Male MH - Multidetector Computed Tomography/*statistics & numerical data MH - *Radiation Dosage MH - Retrospective Studies EDAT- 2014/11/09 06:00 MHDA- 2016/04/14 06:00 CRDT- 2014/11/09 06:00 PHST- 2014/01/28 00:00 [received] PHST- 2014/10/01 00:00 [accepted] PHST- 2014/08/28 00:00 [revised] PHST- 2014/11/09 06:00 [entrez] PHST- 2014/11/09 06:00 [pubmed] PHST- 2016/04/14 06:00 [medline] AID - 10.1007/s00247-014-3201-z [doi] PST - ppublish SO - Pediatr Radiol. 2015 Apr;45(5):695-705. doi: 10.1007/s00247-014-3201-z. Epub 2014 Nov 8.