Assessment of Cancer Risk in Organs of the Abdominopelvic Region from Computed Tomography (CT) Scan Radiation
Ida Bagus Made Suryatika
Department of Physics, Udayana University, Badung, Bali, Indonesia.
I Gusti Agung Ayu Ratnawati
Department of Physics, Udayana University, Badung, Bali, Indonesia.
Anak Agung Ngurah Gunawan *
Department of Physics, Udayana University, Badung, Bali, Indonesia.
Komang Tri Suandayani
Department of Physics, Udayana University, Badung, Bali, Indonesia.
I Gusti Putu Gede Oktar Mahardika
Department of Physics, Udayana University, Badung, Bali, Indonesia.
Ida Bagus Surya Wibawa
Department of Physics, Udayana University, Badung, Bali, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Aims: The research aims to determine and analyze the effective dose value received by the patient's abdominopelvic from CT-scan radiation, determine the effective dose value of several organs at risk around the abdominopelvic organ, conduct a cancer potential test on the abdominopelvic organ and the organs at risk around the region.
Place and Duration of Study: Radiology Installation of Prof. Dr. dr. I Gusti Ngurah Hospital, Jl. Diponegonegoro, Dauh Puri Klod, Kec. West Denpasar., Denpasar City, Bali 80113 between (Juanuary 2023 until January 2024).
Methodology: This research used Canon Brand CT-Scan, Type: XXG-012A, Serial No.: 8AB1862432, surveymeter as radiation dose measurement, and alcohol as a standard washing tool. The variables in this study are large dose of X-ray radiation in the laboratory and Radiology Clinic of STIKes Widya Cipta Husada Malang. The radiation dose was measured at each measurement point.
Results: The potential for cancer is carried out by analyzed the amount of Dose Length Product (DLP) produced by Treatment Planning System getting a maximum effective dose of 5,230 mGy. Cm for female patients and 5,880 mGy. Cm for men, while Bapeten issued a threshold provision of 13,275 mGy. Cm. The potential is quite small. This is also proven by the t-test on the effective dose of DLP obtained by 2.756 results stating statistics (t count <t table). The large dose received by workers in the Laboratory and Radiology Clinic is 0.009 0.009 mSv / year.
Conclusion: The potential for cancer is statistically small or the results of the effective dose analysis do not exceed the BAPETEN threshold. The large dose received by workers in the Laboratory and Radiology Clinic is still within the safe limit and in accordance with BAPETEN provisions. The results of the study of the potential for cancer in the abdopelvic organs and critical organs around it the TPS results are still small but it is recommended to conduct tests on other organs because other organs have different weight factors such as the thorax, head organs or also the cervix.
Keywords: Ct-scan, radiology, DLP, cancer