2011
DOI: 10.1093/rpd/ncr024
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Towards dose reduction in CT: patient radiation dose assessment for CT examinations at university health center in Canada and comparison with national diagnostic reference levels

Abstract: Dose indicators such as the computed tomography dose index (CTDI) and dose-length product (DLP) were gathered for all routine abdomen-pelvis, chest and head examinations performed on all computed tomography (CT) scanners at a University Health Center (UHC) in Canada. These indicators were analysed and compared with the range of diagnostic reference levels (DRLs) suggested by Health Canada and with DRLs in other countries. Mean DLP values varied from one scanner to another, but mean values at the UHC (750 mGy c… Show more

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Cited by 28 publications
(20 citation statements)
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“…Our values are also lower than the reference effective dose s for CT scans reported from the Fleishner Society [18]. Our results are also in good agreement with those of Héliou et al [19], Treier et al [20], and Broucker et al [3].…”
Section: Discussionsupporting
confidence: 92%
“…Our values are also lower than the reference effective dose s for CT scans reported from the Fleishner Society [18]. Our results are also in good agreement with those of Héliou et al [19], Treier et al [20], and Broucker et al [3].…”
Section: Discussionsupporting
confidence: 92%
“…The number and type of each radiology test performed were listed for each patient during the patient's follow-up time. A CED was calculated for each patient using our institution's dose index when available and standardized tables, otherwise, mostly from Bushberg and Mettler as shown in Table 1 for most common diagnostic imaging tests [10–12]. A high dose of radiation was defined as ≥100 mSv as it is the threshold from which an increased risk of cancer is documented [7].…”
Section: Methodsmentioning
confidence: 99%
“…examination justification and optimisation in accordance with the ALARA (as low as reasonably achievable) principle (22). It is now recognised that the implementation and use of DRLs is an efficient tool in the optimisation of diagnostic X-ray examinations, including CT (23). for DRLs, representative of the state of practice at the time and the population studied.…”
Section: Diagnostic Reference Levels (Drls)mentioning
confidence: 99%
“…Values are specific to a country or region assessing local radiological practices and should be updated periodically as technology advances. DRLs allow comparison of performance between various types of X-ray equipment(23).…”
mentioning
confidence: 99%