National diagnostic reference level initiative for computed tomography examinations in Kenya

Radiation Protection Dosimetry
G K KorirPatrick K Boen

Abstract

The purpose of this study was to estimate the computed tomography (CT) examination frequency, patient radiation exposure, effective doses and national diagnostic reference levels (NDRLs) associated with CT examinations in clinical practice. A structured questionnaire-type form was developed for recording examination frequency, scanning protocols and patient radiation exposure during CT procedures in fully equipped medical facilities across the country. The national annual number of CT examinations per 1000 people was estimated to be 3 procedures. The volume-weighted CT dose index, dose length product, effective dose and NDRLs were determined for 20 types of adult and paediatric CT examinations. Additionally, the CT annual collective effective dose and effective dose per capita were approximated. The radiation exposure during CT examinations was broadly distributed between the facilities that took part in the study. This calls for a need to develop and implement diagnostic reference levels as a standardisation and optimisation tool for the radiological protection of patients at all the CT facilities nationwide.

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Citations

Jan 30, 2018·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Ernest U EkpoUche H Chiegwu
Jun 21, 2017·Journal of Medical Imaging·Wilbroad Muhogora, Madan M Rehani
Aug 31, 2019·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Mohammad RawashdehMark F McEntee

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