Abstract
To investigate the current radiographic practices in a public tertiary care teaching hospital in digital radiography set-up, the study aimed to calculate the entrance surface air kerma (ESAK), kerma area product (PKA), and effective doses in chest PA, and AP digital radiographic examinations. Chest radiography is the most common examination performed worldwide. Due to the frequency of these examinations, its contribution to the collective dose is considerable. Also, various international authorities have recommended guidelines for local dose surveys for radiation protection and optimization. IAEA recommended protocol was used to calculate the patient doses. The 3rd quartile values of ESAK and PKA obtained are 0.17 mGy and 0.27 Gycm2 for chest PA; 0.38mGy and 0.21 Gycm2 for chest AP. The estimated mean effective doses are 0.017 (ED from ESAK), 0.037 (ED from PKA) for chest PA and 0.041 (ED from ESAK), 0.028 (ED from PKA) for chest AP. The results obtained are compared with ESAK, PKA, and effective dose values of previously published literature. The estimated doses could be used as a baselines value for setting up of future local diagnostic reference levels (LDRLs) and for optimization of patient doses in diagnostic radiology.
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