Prosiding Seminar Si-INTAN最新文献

{"title":"ANALISIS AUDIT DOSIS SEBAGAI UPAYA OPTIMISASI PADA PEMERIKSAAN CT ABDOMEN INTRAVENOUS (IV) DI RUMAH SAKIT UMUM PUSAT ADAM MALIK MEDAN","authors":"Josepa Simanjuntak, Martua Damanik, Indra Yudha Prasetya, Irfan Agung Maulana","doi":"10.53862/ssi.v3.092023.007","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.007","url":null,"abstract":"Audits are conducted on CT scan examinations using dose metrics to assess the need for optimization in computed tomography procedures. Diagnostic reference levels (DRL) provide an indicator that helps optimize patient medical exposure by adhering to the recommendations of the International Commission on Radiological Protection (ICRP). In the radiology unit at Adam Malik Hospital, efforts were made to reduce the radiation dose given to patients during CT abdominal IV examinations by using the lowest possible radiation dose without compromising image quality. The CT scans were carried out on 1526 patients using a Philips Ingenuity brand CT Scan, type MRC880, serial number 168014, and a built-in phantom as a patient representation. The radiation output was represented by the volumetric computed tomography dose index (CTDIvol) and dose length product (DLP). The physical parameters of tube voltage (kV) and pitch were evaluated to optimize the CT abdominal IV dose. At the same time, the Signal Difference to Noise Ratio (SDNR) was used to analyze image quality for each change in physical parameters. The results of dose audit data for CT abdominal IV patients, when using parameters of 120 kV and 1.1-1.2 pitch, obtained a Q2 value of 1452 mGy.cm higher than I-DRL of 1360 mGy.cm. Data from measurements with a phantom at 100 kV and 1.40-1.48 pitch showed a lower dose than the previous parameters. CT abdominal IV patient dose data with 100 kV and 1.40 -1.48 pitch showed that the DLP value in Q2 was 755 mGy.cm, lower than the previous measurement of 1452 mGy.cm. This means that there was a 52% decrease in dose after changing the parameters of 100 kV and 1.40 -1.48 pitch with image quality remaining optimal. The highest SDNR value of 12 was obtained at 100 kV and 1.48 pitch. The results indicate that it is necessary to establish a new protocol for CT abdominal IV with parameters of 100 kV and 1.40 -1.48 pitch for adult patients over 15 years of age. Keywords: optimization, radiation dose, image quality, CT abdomen","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"36 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALISIS PAPARAN RADIASI SKYSHINE DINDING RUANGAN ANGIOGRAFI/CATHLAB RUMAH SAKIT MITRA KELUARGA KEMAYORAN BERSUDUT GANTRY 0 DERAJAT","authors":"Adi Andhika, Ghifari Muhammad Fajri, Hendra Suroso","doi":"10.53862/ssi.v3.092023.020","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.020","url":null,"abstract":"Based on NCRP (2005), skyshine radiation generally occurs in radiotherapy facilities, the cause of which is that some radiation facilities are designed with minimal shielding on the linear accelerator (Linac) ceiling. As time goes by, Skyshine radiation monitoring is not only focused on radiotherapy facilities, but radiodiagnostic facilities also need to be monitored, especially interventional radiology, which uses real-time X-ray radiation at certain times. Regarding this matter, it is necessary to check whether the walls of the existing angiography room or cath lab are protected from skyshine radiation. This study aims to determine whether the Angiography/Cathlab room at Mitra Keluarga Kemayoran Hospital does not produce skyshine radiation. The method for measuring skyshine radiation exposure uses a survey meter at a distance of 30 cm and 2 meters 3 times from the outer wall of the Angiography/Cathlab room on the north, south, and west sides of the gantry; then the gantry is positioned at 0 degree. The research results show that radiation exposure is 0.14 µSv/hour at a distance of 30 cm. Skyshine radiation was detected at a distance of 2 meters with an exposure value of 0.32 µSv/hour on the west side of the gantry and 0.39 µSv/hour on the north side of the gantry, this occurred due to the radiation barrier wall (Pb ) not complete until the ceiling is only 2 meters high from the floor. The conclusion is that the walls of the Angiography/Cathlab room at Mitra Keluarga Kemayoran Hospital have exposure to skyshine radiation at a distance of 2 meters measured from the outer walls of the Angiography/Cathlab room on the west and north sides of the gantry of 0.32 µSv/hour and 0.39 µSv/hour. Keywords: angiography/cath lab, radiation, X-ray, skyshine, interventional radiology.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"50 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPLEMENTASI INDONESIAN DOSE REFERENCE LEVEL (I-DRL) PADA OPTIMASI FAKTOR EKSPOSI MOBILE X-RAY KAPASITAS 100 MA","authors":"Ari D Reskianto, Heryani Heryani, Ryan W. Widhianto, Arie C. Martania","doi":"10.53862/ssi.v3.092023.012","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.012","url":null,"abstract":". X-ray imaging technology is widely used in medical diagnosis due to its non-invasive nature and ability to provide detailed anatomical images. Diagnostic radiology is the most common practice utilizing X-ray radiation, and the number of examinations has increased substantially over the years. One of the major advancements in this field is the development of mobile X-ray medical devices. The latest mobile X-ray units have a small current capacity of 30 mA – 200 mA, which reduces their weight and makes them more portable. The exposure factor of a mobile X-ray unit is different from that of a stationary one, with higher voltage and lower current strength being used in mobile X-rays. This study aims to determine the correct exposure factor for a 100 mA capacity mobile Air Kerma (INAK) by using a combination of calculation and measurement results obtained through experimental methods. The INAK equation is obtained through suitability test data and is used to calculate INAK and ESAK doses from existing exposure factors. Dose data and image quality were obtained by exposing the attenuation phantom and TOR CDR phantom. The INAK and ESAK results are compared with the INAK and ESAK values on I-DRL. Exposure factor optimization was not carried out as the INAK and ESAK results calculated and measured from the exposure factor table were by I-DRL. The image quality test was carried out visually using a TOR CDR phantom, and a high contrast value of 20.3%, a low contrast value of 0.9%, and a spatial resolution value of 2.5 lp/mm were obtained. In conclusion, the exposure factors used at the Medilab Pekalongan Clinic are optimal and in line with I-DRL. Keywords: I-DRL, Optimization, image quality, mobile X-ray, Entrance Surface Air Kerma (ESAK), Incident Air Kerma (INAK).","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"55 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPLEMENTASI PENCEGAHAN PAPARAN RADIASI YANG TIDAK DIPERLUKAN (UNNECESSARY EXPOSURE) DALAM PROSEDUR OPTIMISASI PROTEKSI RADIASI PASIEN DI INSTALASI RADIOLOGI DIAGNOSTIK","authors":"Indah Lestariningsih, Dinayawati Dinayawati, Mahfudz Fauzan","doi":"10.53862/ssi.v3.092023.001","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.001","url":null,"abstract":"Radiation protection aims to reduce unnecessary radiation exposure and minimize the potential harmful effects of ionizing radiation. Medical exposure is needed to help establish the diagnosis, if the procedure is carried out correctly, the patient will receive clinical benefits that are greater than the risks involved. Under certain conditions, unnecessary radiation exposure (unnecessary exposure) can be accepted by patients. The aims of this research are to classify unnecessary radiation exposure (unnecessary exposure), conduct a review of optimization efforts based on unnecessary radiation exposure data and identify and recommend preventive measures that can be taken. The method used in this study is descriptive qualitative by direct observation and interviews with radiation workers. The results of the classification of causes of unnecessary radiation exposure to patients from the results of repeated exposures include collimation factors, artifacts, positioning, uncooperative patients, movement unsharpness, human error, aircraft factors and exposure factors. Efforts that have been made to prevent unnecessary exposure include preparing SPOs for examinations in treatment rooms, provision of mobile shielding, use of PPE (gonad shields) for pediatric patients, implementation of dose audits and image QC, evaluation and monitoring of service quality assurance, application of procedures and optimization measures. Recommendations that can be given include providing ongoing training for radiation workers, creating a cultural socialization and radiation safety program, creating a reporting and monitoring system for the implementation of radiation protection, and increasing awareness of radiation workers. Keywords: optimization, radiation protection, unnecessary exposure.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"8 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OPTIMALISASI PENGECEKAN APRON PB MENGGUNAKAN CT SCAN UNTUK MEMINIMALKAN WAKTU DAN PAPARAN YANG DITERIMA PADA SAAT EVALUASI KUALITAS APRON PB","authors":"M. Dlorifun Naqiyyun, Desi Hutahaean","doi":"10.53862/ssi.v3.092023.021","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.021","url":null,"abstract":"Ensuring radiation protection for workers, patient companions, or even patients is crucial, and Pb aprons serve as personal protective equipment from radiation hazards. However, the quality of the Pb apron needs to be evaluated periodically. Traditionally, the evaluation process involves X-ray fluoroscopy and conventional X-rays, indirectly exposing workers to potential radiation hazards. To minimize this risk, optimization of checking Pb aprons using a CT Scan is necessary. CT Scan requires only 1-1.5 minutes to limit one apron unit, and the radiation exposure workers receive is around 0.11 – 0.41 µSv/hour. This is significantly shorter and safer than the time required for X-ray fluoroscopy or general radiography modalities. Keywords: Apron Pb, CT Scan, apron evaluation, time exposure, radiation exposure.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"51 2-3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALISA KUALITAS RADIORGRAF TERHADAP NILAI INDEKS EKSPOSUR STUDI PADA PASIEN PEDIATRIK PEMERIKSAAN BABY GRAM","authors":"Shelly Angella, Angga Pandu Asmara Putra, Yoni Eko Pranoto, Annisa Annisa, Danil Hulmansyah","doi":"10.53862/ssi.v3.092023.010","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.010","url":null,"abstract":"A child's body is still growing, making it more radiation-sensitive. Radiographic examinations such as baby gram X-rays in children must pay attention to the ALARA principle (as low as reasonably achievable). The radiograph results will produce good quality and pay attention to the child's radiation dose. This study aims to analyze the exposure index's value in selecting exposure factors for babygram radiographic examination. An assessment is also carried out on the radiograph's noise value to assess the image's excellent quality in the study. This research is quantitative with an experimental design. The analysis was carried out at Arifin Achmad Regional Hospital, Riau Province. The research method is to produce two radiographs from a baby gram X-ray examination with a predetermined exposure factor. The assessment is done by looking at the exposure index and noise values produced on each radiograph. Exposure factors influence sensitivity values, dose values, and noise values. The sensitivity value can determine the value of the dose released. Sample 1, with exposure factor setting kV 65 and mAs 2.5, obtained a sensitivity value of 76 and produced a dose value of 2,631 mR. Sample 2, with exposure factor setting kV 45 and mAs 4, got a sensitivity value of 241 and a dose value of 0.828 mR. Noise value is lower in sample 2. Keywords: Exposure Index, exposure factor, X-rays, baby gram, noise","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"16 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALISIS DOSE VOLUME HISTOGRAM (DVH) PARU-PARU DAN JANTUNG PADA KASUS KANKER PAYUDARA DENGAN TEKNIK 3DCRT","authors":"Firda Rahmawati1, Muhammad Irsal, Shinta Gunawati","doi":"10.53862/ssi.v3.092023.025","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.025","url":null,"abstract":"Anatomically, the background of this research focuses on Organ At Risk (OAR), specifically the lungs and the heart, which exist adjacent to the chest wall and consequently receive radiation during radiotherapy. Therefore, efforts to limit the radiation dose to OAR are necessary to minimize the risk of secondary cancers after conducting radiotherapy. The success of therapy also relies on the Treatment Planning System (TPS) for accurate dose planning. The TPS calculates the dose delivered to the patient, which is then displayed as a Dose Volume Histogram (DVH). The objective of this research is to analyze the results of a Dose Volume Histogram (DVH) for organs at Risk (OAR), specifically lungs and heart, as well as Planning Target Volume (PTV) in the cases of breast cancer using the 3DCRT technique. The research design used is a descriptive quantitative comparative analysis through observation. This study was conducted from February to March 2023 at the Radiotherapy Installation of a Hospital in the Jakarta Region. The research involved ten breast cancer patients with a total dose of 50 Gy in 25 times 6 MV energy fraction using the 3DCRT technique. Data analysis was performed using statistical tests with SPSS version 25. The result of this study showed that the average dose received by Organs At Risk (OAR) for the lungs and heart did not exceed the tolerance limits set out by RTOG 0623 (p-value <0.05). The average dose value at 95% Planning Target Volume (PTV) is 0.328 (p-value > 0.05), which means there is no difference in the dose received by 95% PTV or 95% PTV ≥ 4750 cGy. Meanwhile, at 107%, PTV is 0.003 (p-value <0.05), which means there is a difference in the dose received by 107% PTV or 107% PTV ≤ 5350 cGy. The conclusion of this research is that compared to other techniques, and the 3DCRT technique is more often used in breast cancer radiotherapy because of its ability to provide good OAR protection with more limited resources and time. Keywords: breast cancer, 3DCRT, Dose Volume Histogram (DVH), Organ At Risk (OAR), Planning Target Volume (PTV).","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPLEMENTASI INDONESIAN DIAGNOSTIC REFERENCE LEVEL (I-DRL) PADA PELAYANAN DIAGNOSTIK IN VIVO KEDOKTERAN NUKLIR DI RSUP DR. SARDJITO TAHUN 2022-2023","authors":"Nur Endah Sari, Bangbang Aryanto, Embun Ligaya Mardikaningrum, Ipnu Setiyo Widarno, Aditya Wisnusaputra","doi":"10.53862/ssi.v3.092023.008","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.008","url":null,"abstract":"The Indonesian Diagnostic Reference Level (I-DRL) value in nuclear medicine was only published in November 2022 by the Nuclear Energy Regulatory Agency (BAPETEN). Implementing I-DRL in in-vivo diagnostic services in nuclear medicine at Sardjito Hospital, which has been running so far, needs ongoing evaluation to help realize an increase in the ratio of benefits to risks of radiation to patients. This research aims to apply I-DRL nuclear medicine at Dr. Sardjito Hospital while still applying the principles of optimizing medical exposure. Optimization focuses on maintaining guaranteed image quality, namely images that are readable or not readable by nuclear medicine specialists, while still implementing radiation protection against medical exposure. The research is a retrospective descriptive method from bone scan patient data from 2022-2023. The selection of 299 bone scan data was based on the most frequently performed examinations. The bone scan imaging tool used was a GE brand single-photon emission computed tomography (SPECT-CT) gamma camera type NM/CT 870 DR. Image processing uses a comparison of region of interest (ROI) values from the target and background on the femur bone using Xeleris software. Based on the image analysis results, the target and background's lowest, average, and highest comparison values were respectively 1.15, 2.1, and 3.75. Spearman statistical testing was also carried out between the dose per Body Mass Index (BMI) and the target/background value ratio, obtaining an R-value of -0.046, which means the two variables have a weak relationship. This research provides information that I-DRL Bone scan can be implemented without affecting the image quality results. Implementing I-DRL is a form of optimizing radiation protection for patients, preventing unnecessary radiation exposure, and ensuring the quality of nuclear medicine services will improve in the future. Keywords: I-DRL, in vivo diagnostics, optimization, radiation protection, bone scan.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENENTUAN TIPIKAL DOSIS PADA PEMERIKSAAN RADIOGRAFI THORAKS PA BERDASARKAN KURVA REFERENSI-DRL MENGGUNAKAN DATABASE SI-INTAN BAPETEN","authors":"Muhammad Irsal, Asumsie Targian, Shafa Elisa Wulandari, Nurkhriza Kinasih","doi":"10.53862/ssi.v3.092023.011","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.011","url":null,"abstract":"Consideration of patient weight as an essential indicator in optimization efforts. This is because the radiation dose varies not only for age groups but is accompanied by changes in body weight. This research method uses a retrospective study of PA chest radiography examination results in the BAPETEN DRL database between 2018-2022. PA chest radiography examination data used: examination projection, body weight, age, source image distance, exposure factor consisting of kV and mAs, and entrance surface air kerma (ESAK) dose. Data were analyzed to create a DRL-reference curve by grouping body weight from 30-101 kg with a range of 5 kg. The first stage of data fitting is to determine the relationship between body weight (kg) and radiation dose (mGy). The second stage creates a DRL reference curve using the exponential function. Next, determine the DRL value for each weight group with the 25th percentile, 50th percentile, and 75th percentile values. Continue by determining descriptive statistical values: average, standard deviation, and range. As well as comparing the 75th percentile typical dose value between the Jakarta DRL Local value and the Indonesian National DRL value. As a result of the research, a DRL reference curve for body weight groups against radiation dose was created. DRL reference curves can be compared according to further research needs or as an optimization effort. The 75th percentile DRL reference curve for the Jakarta DRL Local data is higher than the Indonesian DRL National data. Therefore, collaboration between all parties is needed to optimize radiography procedures to control the Jakarta DRL-reference curve. Data limitations are also an important factor that can cause the shape of the exponential curve to change. Keywords: DRL-reference curve, diagnostic reference level, Thorax PA.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"19 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OPTIMISASI PROTEKSI DAN KESELAMATAN RADIASI TERHADAP PAPARAN MEDIK PADA FOTO RONTGEN DADA MENGGUNAKAN PENGATURAN FAKTOR EKSPOSI","authors":"Inganatul Islamiyah, D.P. Astiti Sudewi, Dyah Ayu Nuril Azizah, Dwi Mulyati Oktaviana, Vira Syafitri Ramadhanti","doi":"10.53862/ssi.v3.092023.009","DOIUrl":"https://doi.org/10.53862/ssi.v3.092023.009","url":null,"abstract":"Chest X-ray examination is a type of examination that is often carried out in radiology installations. Every patient who undergoes a chest X-ray examination will receive radiation exposure. The amount of chest X-ray radiation exposure depends on the exposure factors that currently refer to the manufacturer's recommendations. So, it is necessary to optimize radiation protection, which aims to reduce the radiation dose without lowering the quality of the resulting images. One way to do this is by adjusting the exposure factor while maintaining optimal image quality. The method reduces the voltage from 100 kV to 95 kV with a fixed mAs. This method was applied to a total of 100 chest X-ray patients. Each PA position has 50 patients, and AP has 50 patients. Calculations are carried out using the radiation output equation to determine changes in the patient's radiation dose. Next, qualitative and quantitative analysis was carried out to determine changes in the quality of chest X-rays before and after reducing the tube voltage and qualitatively based on a questionnaire assessment by a radiologist while quantitatively based on statistical tests of Exposure Index (S) and Lattitude (L) values on Fujifilm digital radiography. The results show that reducing the voltage can reduce the Entrance Surface Air Kerma (ESAK) from 0.2578 mGy to 0.2295 mGy. In other words, there was a reduction in the radiation dose for chest X-ray patients by 0.0283 or around 11%. Qualitatively, the image results still meet the criteria for chest image acceptance. Likewise, quantitatively, data was obtained that the S and L values of chest X-rays before and after reducing the voltage were not significantly different. The independent data difference test value is 0.598 for the PA projection and 0.809 for the AP projection with α = 0.05. The results of this study indicate that optimization of radiation protection and safety against medical exposure on chest X-rays using exposure settings can be applied by reducing the voltage (kV). Keywords: tube voltage, chest X-ray, X-ray, radiation dose, image quality, radiation protection.","PeriodicalId":476035,"journal":{"name":"Prosiding Seminar Si-INTAN","volume":"120 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}