Abstract

Evaluation of Technical Parameter on CT-scan used for Pediatric and Adult Diagnosis in Two Governmental Referal Hospitals in Ethiopia

The main aim of this study was to reveal technical parameters on CT scan used for pediatric and adult diagnosis in Tikur Anbesa and Yekatit 12 specialized hospitals in Addis Ababa, Ethiopia. Thus, KV, mA, Eff.mAs, pitch, table feed and rotation times were among explored technical parameters in line of three leading questions. Data on head, neck, chest, abdomen and the pelvic scan regions were collected from a total of 154 patients (22 pediatrics and 132 adults). The data were analyzed through descriptive statistics on microsoft excel and t-test using SPSS software 21 version. The results were presented in the table, line graph and histogram. From t-test report results, it could have concluded that the ED from pediatric resulted in higher than that of adult, t (139)=-0.539, P=0.591. And pitch from pediatric scored higher than that of adult, t (139)=0.385, P=0.701. And for different scan regions and ages 120 KV was used and pediatric exposed to high radiation dose. Based on these results the following recommendations were made. The medical technologist should have selected the appropriate KV based on age and scan regions. The Ethiopian radiation authority should have made survey study on diagnosis dose to reduce the adverse health impacts of doses. Relevant authorities should monitor the radiation management implementation in CT scan medical imaging procedure in hospitals where CT scan machines are employed.

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