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Analisis Korelasi Umur, Massa Tubuh dan Faktor Eksposi Terhadap Entrance Surface Air Kerma pada Pemeriksaan Thorax di Rumah Sakit Universitas Andalas Suci Indah Sari; Dian Milvita; Ramacos Fardela; Ida Bagus Gede Putra Pratama; Amel Oktavia S
Jurnal Fisika Unand Vol 13 No 5 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.5.602-609.2024

Abstract

Research has been conducted on the correlation analysis of age, body mass, and exposure factors to Entrance Surface Air Kerma (ESAK) in the Radiology Installation of Andalas University Hospital. The study was conducted by collecting data on adult thorax examination patients over 15 years of age and body mass (60 ± 10) kg in Posterior-Anterior (PA) and Anterior-Posterior (AP) projections for ± 5 months. Patient data used in PA projections are 107 patient data with the Automatic Exposure Control (AEC) method, 9 patient data with manual methods and 10 AP projection patient data with manual methods. Analysis was conducted using the Pearson correlation test. The results showed that body mass and exposure factors have a very strong relationship with ESAK as indicated by r = 0.805 to 0.990. As body mass and exposure factor increase, the average ESAK received by patients will increase, while age has a weak relationship with ESAK as shown by r = -0,246 to 0,227.
Analisis Hubungan Massa Tubuh, Compressed Breast Thickness (CBT), Usia dan Faktor Eksposi terhadap Mean Glandular Dose (MGD) pada Pemeriksaan Pasien Pesawat Sinar-X Mamografi di RSUP Dr. M. Djamil Anissa Ledita; Dian Milvita; Ida Bagus Gede Putra Pratama
Jurnal Fisika Unand Vol 15 No 5 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.5.483-489.2026

Abstract

A study on the analysis of the relationship between body mass, compressed breast thickness (CBT), age, and exposure factors on the mean glandular dose (MGD) in mammography X-ray examinations was conducted at the Radiology Department of Dr. M. Djamil Hospital in Padang. The study aimed to analyze the relationship between several parameters and MGD values. The study was conducted using a collection of mammography patient dosimetry data from January to July 2025, comprising 165 data points. The methods used were simple linear correlation and multiple linear regression tests. The results showed that body mass had a positive and moderate relationship with MGD, with a correlation coefficient (rxy) values ranging from 0,322 to 0,383. CBT had a positive and strong relationship with MGD with an (rxy) values from 0,566 to 0,574. Age had a negative and very weak relationship with an (rxy) values ranging from (-0,146) to (-0,037). . Exposure factors had a positive and very strong relationship with MGD with an Multiple R values ranging from 0,993 to 0,995.
Evaluasi Nilai Dosis Tipikal pada Pasien Pemeriksaan Intervensional Menggunakan Modalitas C-Arm di RSUP Dr. M Djamil Padang Cindy Wulandari Cindy Wulandari; Dian Milvita; Ida Bagus Gede Putra Pratama
Jurnal Fisika Unand Vol 15 No 5 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.5.521-528.2026

Abstract

Research on the determination, analysis, comparison, and evaluation of typical dose values ​​in C-Arm examinations against TPD values ​​from several previous studies and several countries has been conducted at Dr. M. Djamil Padang General Hospital. Data collection was carried out on adult patients with a body mass of (50-70) kg and aged over 15 years with a total number of 276 patients. The study was conducted on Coronary Angiography (CAG) examinations of 65 people, Percutaneous Coronary Intervention (PCI) examinations of 89 people, and Percutaneous Transluminal Coronary Angioplasty (PTCA) examinations of 122 people. The method for determining typical dose values ​​is obtained from the median analysis (Q2) of the distribution of dose magnitude data (DAP and Total Kerma). The results of the study show that the typical dose value of RSUP Dr. M. Djamil Padang on the C-Arm fluoroscopy X-ray modality has met the standards set by BAPETEN number: 3426 / K / XI / 2022 because it is below the recommended TPD value for Indonesia. The typical dose value at Dr. M. Djamil Padang General Hospital is 0.05%. M. Djamil Padang is lower than the TPD value of several previous studies and the TPD of several countries such as Japan, Austria, UK, and Finland.
Co-Authors Amel Oktavia S Anissa Ledita Cindy Wulandari Cindy Wulandari Dian Milvita Ramacos Fardela Suci Indah Sari