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All Journal WIKUACITYA: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Applied Science and Technology Indonesian Journal of Innovation and Educational Technology
Septiawan, Bayu
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Journal : Indonesian Journal of Applied Science and Technology

 1 
Estimasi Dosis CT Scan Abdomen Nonkontras Dewasa Berdasarkan CTDIvol dan DLP RSUD NTB Septiawan, Bayu
Indonesian Journal of Applied Science and Technology Vol. 6 No. 1 (2025): Edisi Januari-Juni 2025
Publisher : Indonesian

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Abstract

Abdominal computed tomography (CT) is a widely used diagnostic imaging modality but may result in relatively high exposure to ionizing radiation. Therefore, radiation dose evaluation is necessary to ensure patient safety in accordance with optimization principles. This study aimed to analyze the distribution of radiation doses in non-contrast abdominal CT examinations for adult patients at RSUD Province of West Nusa Tenggara based on Computed Tomography Dose Index volume (CTDIvol) and Dose Length Product (DLP), and to compare the results with the Indonesian Diagnostic Reference Level (IDRL) established by BAPETEN. A descriptive quantitative method with an observational approach was applied to 60 adult patient data collected from July to August 2024. CTDIvol and DLP values were obtained from the CT scanner workstation and analyzed using descriptive statistics. The results showed an average CTDIvol of 14.86 mGy with a 75th percentile of 16 mGy, and an average DLP of 775.87 mGy·cm with a 75th percentile of 838 mGy·cm. Overall, the radiation dose values were below the IDRL limits set by BAPETEN in 2021, although several cases exceeded the reference. These findings indicate that the abdominal CT scanning protocol at RSUD Province of West Nusa Tenggara generally complies with radiation dose optimization standards.
Application of Quality Control in Mobile Digital Radiography and Lead Apron Performance Testing Using CT Scan at West Nusa Tenggara Provincial General Hospital Putri , Baiq Alifa Kanaya; Septiawan, Bayu; Hudha, Lalu Sahrul
Indonesian Journal of Applied Science and Technology Vol. 7 No. 1 (2026): Edisi Januari-Juni 2026
Publisher : Indonesian

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The use of Mobile Digital Radiography (Mobile DR) in radiology services continues to rise due to its flexibility and efficiency; consequently, the implementation of Quality Control (QC) and regular evaluation of radiation protection equipment are necessary to ensure service quality and radiation safety. This study aims to evaluate the implementation of QC on Mobile DR equipment and to assess the suitability of lead aprons using CT scans at the Radiology Department of the NTB Provincial General Hospital. This is a quantitative descriptive study with the research subjects comprising one unit of mobile DR and 13 lead aprons. QC testing was conducted on the parameters of illumination, collimation, and X-ray beam alignment, while the apron suitability test was performed using a 64-slice CT scan to detect lead material leakage. The results showed that the illumination value was 198 lux, collimation was within tolerance limits, and beam alignment was 0°, meaning the Mobile DR unit was deemed to meet suitability standards. Furthermore, 5 out of 13 lead aprons (38.46%) exhibited leakage exceeding tolerance limits and were deemed unfit for use. These findings underscore the importance of implementing quality control (QC) and regular inspections of radiation protection equipment as part of the Quality Assurance programme to ensure the quality of radiology services and radiation safety at the NTB Provincial General Hospital.
Co-Authors Anggraeni, Nilam Atmaja, Nur Aulia Dea Erin Ryantin Gunawan Fadilah, Nawal Fitriana, Hellen Gunawan Gunawan Innayah, Lailatul Lalu Sahrul Hudha Maharani, Desta Putri , Baiq Alifa Kanaya Saputra, Prastiyo Damar Subekti, Rizky Hafiz Dwi Sumarnis, Larasati Varehel Wijaya, Wasi Yuliawan