Evaluasi Diagnostic Reference Levels (DRL) Pada Pemeriksaan Thorax PA di Pulau Jawa Berdasarkan Database DRL BAPETEN

Abstract

The International Commission of Radiation Protection (ICRP) defines the diagnostic Reference Level (DRL) as a tool for optimizing patient radiation dose during radiological examinations. However, its implementation has obstacles, such as the unavailability and completeness of inspection data. Because DRL plays a role in controlling the patient's dose so that it is optimal, regular DRL evaluation is needed, especially on the island of Java. This research is a retrospective study of the results of PA chest radiography examinations in the database BAPETEN DRL between 2018-2022. PA chest radiography examination data used are examination procedure, patient position, age, body weight, exposure factors (kVp and mAs), and ESAK dose (mGy). After that, statistical analysis was carried out using IBM SPSS version 26 and Microsoft Excel with descriptive statistical analysis of the mean, median, standard deviation, 1st quartile, 2nd quartile, 3rd quartile, and minimum to maximum ratio values for the ESAK dose. Next, the 3rd quartile values of the Java island province were analyzed and compared with several Asian countries and Australia. The results of the research on the 3rd quartile radiation dose values on the island of Java with the highest to the lowest were West Java (0,31 mGy, n=1273), Yogyakarta (0,5 mGy, n=33), East Java (0,24 mGy, n=1206), Central of Java (0,22 mGy, n=725), Banten (0,20 mGy, n=2349), Jakarta (0,17 mGy, n=1870). The DRL on the island of Java is still controlled and lower than the National DRL and DRL in Asian countries and Australia. Keywords: Java Island, Diagnostic Reference Level, Thorax PA, 3rd quartile.