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All Journal Jukema (Jurnal Kesehatan Masyarakat Aceh) Journal of Applied Health Management and Technology Jurnal Kesehatan Tambusai Abdi Masya Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal EduHealth Jurnal Implementasi Pengabdian Masyarakat Kesehatan
Intan Andriani
Jurusan Fisika Universitas Diponegoro Semarang
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Journal : Jurnal EduHealth

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Analysis of the Effects of Variation of Phantom Diameter on Radiation Dose on Image Dicom CT Scan Using IndoseCT Andriani, Intan; Budiwati, Trisna; Ningtias, Diah Rahayu
Jurnal EduHealth Vol. 13 No. 01 (2022): Jurnal EduHealth, April - September 2022
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.434 KB)

Abstract

CT-Scan is one of the imaging modalities in the field of radiodiagnostics that can produce axial, coronal, and sagittal slices of the object or patient performing the examination. CT-Scan can be applied to diagnose trauma in cancer cases. The use of CT-Scan aircraft certainly provides a fairly large radiation dose compared to other diagnostic imaging modalities (Bushberg, 2012). This study aimed to determine the effect of the thickness (diameter) of the object on the radiation dose. This study's benefit is providing accuracy in receiving the body's absorbed dose on CT-Scan examination. This research is experimental. The study used a sample of 5 phantoms with variations in the diameter of 8 cm, 16 cm, 24 cm, 32 cm, and 40 cm. The data is obtained from the phantom scan results, which are inputted into the IndoseCT program. The data generated by IndoseCT will be analyzed regarding the amount of radiation dose received by each phantom size. The final result expected from this research is the evaluation of measurement or monitoring of doses to patients who can support radiation protection programs in ensuring patient safety.
Utilization of High kV Lumbar Examination Technique in Determination of Entrance Surface Dose (ESD) Budiwati, Trisna; Andriani, Intan
Jurnal EduHealth Vol. 13 No. 01 (2022): Jurnal EduHealth, April - September 2022
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.714 KB)

Abstract

Entrance Surface Dose (ESD) is one of the units of quantity used in diagnostics to express the radiation dose received by the object (phantom or patient) measured at the centre of the main beam on the surface of the phantom or patient (UNSCEAR, 2010). According to Bushong (2008), the high kV technique states that to get the same optical density, with an increase in tube voltage (kV) of 15%, a 50% decrease in the mAs value is required. This study aims to calculate the ESD value if applied in the use of the high kV technique in lumbar irradiation using the Cobia Smart R/F measuring instrument. In this study, the authors applied the high kV technique using 65 kV and 16 mAs, 75 kV and 8 mAs, and 85 kV and 4 mAs. The dose value measured in the Cobia Smart R/F tool is then entered into the formula to calculate the Entrance Surface Dose (ESD) value. The results showed that the Entrance Surface Dose (ESD) produced at 65 kV, 75 kV, and 85 kV, respectively, were: 1.3597 mGy, 0.9728 mGy, and 0.7055 mGy. From the Diagnostic Reference Level (DRL) data released by BAPETEN in 2020, it is known that the DRL value for the Lumbar AP examination is 1.8 mGy. In this case, the high kV technique can minimize the dose to the examined object.
Co-Authors Agustina Anwar, Syafruddin Diah Rahayu Ningtias, Diah Rahayu Jamil, Masfufatun Siti Rosidah Suraningsih, Nanik Trisna Budiwati Tsania, Novia Putri