Abstract
Background: Diagnostic Reference Levels (DRL) are stated in CTDI and DLP hence due to an accurate parameter selection, good control practices and the use of appropriate DRL, they will significantly reduce the radiation dose to the patient by more than 50%. In addition to DRL, the value of estimated effective dose and estimated cancer risk is as additional information to assist in several aspects of justification and optimization as well as to become an educational device that increases the awareness of the risk of cancer. This research also aims to obtain DRL value for a 3-phase abdominal CT scan because Indonesia does not yet have a DRL for a 3-phase abdominal CT scan. Methods: This research uses an observational approach with descriptive quantitative methods using secondary data. As for the data analyzed herein, they involve the patient information and the radiation dose received during a 3-phase abdominal CT scan obtained from the dose report on the CT Scan machine workstation. Meanwhile, the research population included all the patients who underwent a 3-phase abdominal CT scan undertaken at Radiology Installation of Persahabatan Central General Hospital starting from January up to March 2024 with a total population of 40 patients. The number of samples used was 30 samples. The collected data are processed and analyzed using a descriptive frequency test and then compared with DRLs from the other countries and Abdominal I-DRL, AbdoPelvis and Whole Abdomen. Furthermore, it is then calculated to obtain the estimated effective dose and cancer risk which is presented in tabular form. Results The results of this research suggests that DRL value at CTDI Persahabatan Central General Hospital is lower than that in the other countries and below Abdominal I-DRL, AbdoPelvis and Whole Abdomen, and DLP value is much higher than that in the other countries and above Abdominal I-DRL DLP, AbdoPelvis and Whole Abdomen.
Published Version
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