Radiation Protection Dosimetry · 2015 · 54 citations · 12 references
MedicinePediatricsRadiologyDiagnostic ImagingDiagnostic RadiologyPediatric RadiologyChest RadiologyComputed TomographyComputed Tomography Dose ManagementDose CalculationPatient-specific DosimetryPediatric ImagingChest Radiography In ChildrenComputed Tomography Dose MeasurementDose Calculations For ChildrenDose-length ProductMedical Imaging Radiation DosePatient Dose AssessmentPatient Dose MeasurementPediatric Dosimetry
Indication-based national diagnostic reference levels (DRLs) for a few most common paediatric computed tomography (CT) examinations are proposed. Patient dose data (CTDI vol and dose length product) were collected for over 1000 patients in 4 university hospitals with best experiences in paediatric CT. Four indications for chest CT and two for abdomen (abdomen + pelvis), chest + abdomen and head CT were considered. The DRLs for the body examinations are proposed as exponential DRL-curves, where CTDI vol and dose length product are presented as a function of patient weight. The same DRL curve applies to all the indications studied. The basic 75 % level curve is supplemented by 50 % level curve to enable considerations on varying levels of technology. For head CT, DRLs are proposed for a few age groups (1, 1-5, 5-10 and 10-15 y), separately for routine CT and CT for ventricular size. The proposed DRLs are generally lower than the few published DRLs in other countries.
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National survey of doses from CT in the UK: 2003
P C Shrimpton, Mathew Hillier, Maria Lewis et al. · British Journal of Radiology · 2006 · 565 citations