Estimation of Pediatric Dose during Computed Tomography of the Brain

Abstract

This study was descriptive and analytic study aim to estimate radiation dose to pediatric patients during Computed Tomography (CT) Examinations in three hospital in Khartoum state Dar Elaj specialized hospital, Royal Care International hospital and East Nile hospitals in period from April 2016 to May 2017 and the results show that themilli-ampar second (mAs) values was higher in Dar ElajSpecialized hospital (372.28) than other hospitals (202.6 and 147.18), and in case ofkillo-volt peak(KVp),computed tomography dose index volume (CTDIvol), dose length product (DLP) and effective dosewashigher in Royal care 120,47.70,1307,27 and 24.44 then Dar Elaj 115.71, 45.46,1082.72 and 20.23 then East Nile 115.62, 43.01, 869.13 and 16.25. In correlation ofmilli-ampar second(mAs) with other variables found that the relation of milli-ampar second (mAs) with dose length product (DLP) (0.06) and effective dose (0.064) was week relation, and milli-ampar second (mAs) with computed tomography dose index volume (CTDIvol) (0.31) was moderate. And the correlation the effective dose (ED) with computed tomography index volume (CTDIvol) (0.34) show that there is moderate relation between them. The main dose variations in the same computed tomography (CT) unit could be attributed to the different techniques, which justify the important of use radiation dose optimization technique and technologists training. Dose reduction strategies must be well understood and properly used.