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http://dx.doi.org/10.5392/JKCA.2015.15.06.290

Analyzed the Computed Tomography Dose Index (CTDI) to the Pediatric Brain CT by Reason of the Observation for the Exposure Dose: Base on a Hospital  

Lee, Jae-Seung (동의대학교 방사선학과)
Kim, Hyun-Jin (동의대학교 대학원 보건의과학과)
Im, In-Chul (동의대학교 방사선학과)
Publication Information
The Journal of the Korea Contents Association / v.15, no.6, 2015 , pp. 290-296 More about this Journal
Abstract
The purpose of this study was to derive the proposals and to suggest the exposure dose reduction scheme on pediatric head CT scan by analyzing and comparing CT dose index (CTDI) and the national diagnostic reference levels. From January 2014 to December, 231 children under 10years who were requested a pediatric head CT scan with head injury were examined. Research methods were to research and analyze the general characteristics kVp, mA test coverage $CTDI_{vol}$ and DLP referring to dose reports and electronic medical record (EMR). As a result, 7.4%(17 patients) of the total subjects in $CTDI_{vol}$ showed a national diagnostic reference levels exceeding. For DLP 41.6%(96 patients) in excess was relatively higher than $CTDI_{vol}$. DLP was exceeded more than about 60% that is higher than the CT dose index presented by Korea Food & Drug Administration. it is cause of high DLP that scan range increased more than about 30% wider than the standard test coverage presented in Health Insurance Review & Assessment Service. In conclusion, it is able to significantly lower the dose if it is complied with checking the baseline scan range of pediatric head CT scan and appropriately adjusting the protocol.
Keywords
Computed Tomography Dose Index; Diagnostic Reference Level; Dose Report; Electronic Medical Record; Dose Length Product;
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Times Cited By KSCI : 1  (Citation Analysis)
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