Survei Penentuan Tingkat Panduan Diagnostik pada CT Scan Kepala dan Abdomen Non-Kontras di Rumah Sakit

Abstract

Diagnostic reference level (DRL) is still low for monitoring patient doses on hospital CT Scan. The need for radiation monitoring of CT Scan patients is related to radiation protection. CT Scan have a large dose, and as CT Scan develop, it is necessary to monitor the dose of CT Scan, especially those related to DRL. The importance of DRL is related to efforts to optimize radiation protection, which must be monitored regularly so that patients receive the lowest possible dose with optimal image quality. Determination of the local DRL value from quartile 2 (Q2) and national DRL with Quartile 3 (Q3) from the average CTDI vol and total DLP recordings of non-contrast CT Scan of the head and abdomen. From the survey results, local DRL calculations and national DRL contribution or I-DRL are as follows: CT scan of the head based on Q2 and Q3 obtained CTDIvol of 63.45 mGy. Meanwhile, based on Q2, it is 913,68 mGy.cm; in Q3, the DLP is 1096,42 mGy.cm; this value is below the national standard. The CT Scan Abdomen CTDIvol examination based on Q2 obtained 8.08 mGy. and based on Q3 of 10.18 mGy. Both are below the national average of 17 mGy. DLP results based on Q2 got a result of 321.99 mGy.cm, and based on Q3 obtained a result of 419,82 mGy.cm; both values are below the standard. National standards are based on the Head of BAPETEN Decree 1211/K/V/2021. DRL that exceeds the national standard for head CT Scan requires a protocol review to obtain the lowest possible dose, but the image quality remains optimal. It is an effort to optimize radiation protection. Keywords: Diagnostic Reference Level, CT Scan, Head, Abdomen, Non-Contrast