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All Journal Jurnal Imejing Diagnostik JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Journal of Health (JoH) Journal Of Vocational Health Studies Jurnal Kesehatan Vokasional Jurnal Teras Kesehatan Jurnal Kesehatan SANITAS: Jurnal Teknologi dan Seni Kesehatan Jurnal Ilmu dan Teknologi Kesehatan JPK: Jurnal Proteksi Kesehatan Jurnal Pengabdian Masyarakat Indonesia International Journal of Health Science and Technology PEDAMAS (Pengabdian Kepada Masyarakat)
Muhammad Irsal
Unknown Affiliation
Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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The Effect of Kilovoltage and Milliampere-Second Parameters on CT Number: Study Phantom Quality Control CT Scan Muhammad Irsal; Aulia Narindra Mukhtar; Guntur Winarno; Gando Sari
SANITAS: Jurnal Teknologi dan Seni Kesehatan Vol 13 No 2 (2022): SANITAS Volume 13 Nomor 2 Tahun 2022
Publisher : Politeknik Kesehatan Kemenkes Jakarta II

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36525/sanitas.2022.20

Abstract

CT number is one of the indicators in determining the diagnosis of disease, so it is necessary to ensure the level of accuracy. The aim is to determine the parameters of kilovoltage and tube current to the CT value. Descriptive quantitative analytic research method with previously tested linearity and the suitability of the CT number. Furthermore, the variation of kilovoltage: 80kVp, 100kVp, 140kVp and the tube current value is 192mAs. After that, the tube current variation was continued: 80mAs, 100mAs, 140mAs and the voltage value was 120kVp. Phantom image results were analyzed using radiant viewer software with a region of interest (ROI) size of 5mm. Then analyze the correlation coefficient to determine the degree of relationship between the kilovoltage and milliampere-second parameters to the CT number. The results of the linearity test and the suitability of the CT number value were within the tolerance limit. For variations in kilovoltage to CT number , the correlation coefficient values ​​are water R2=0.09, fat R2=1, soft tissue R2=0.9, bone R2=0.7. As for the milliampere-second variation of the CT number , the correlation coefficient values ​​are: water R2=0.7, fat R2=0.8 , soft tissue R2=1, bone R2=0.7.
Analisis Efektivitas Apron 0.35 mmPb dalam Melindungi Pekerja Radiasi pada Pemeriksaan Radiografi Muhammad Irsal; Shinta Gunawati Sutoro; Mahfud Edy Widiatmoko; Asumsie Tarigan; Guntur Winarno; Legia Prananto
Jurnal Kesehatan Vokasional Vol 8, No 3 (2023): August
Publisher : Sekolah Vokasi Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jkesvo.80499

Abstract

Latar Belakang: Quality Control (QC) pada apron wajib dilakukan satu tahun sekali. Hal ini bertujuan untuk memastikan keamanan pada pekerja radiasi sebelum melakukan prosedur pemeriksaan radiologi sehingga penerimaan dosis radiasi tidak melebihi 20 mSv/ tahun.Tujuan: Menganalisis efektivitas penggunaan apron 0.35 mmPb untuk melindungi pekerja radiasi pada pemeriksaan radiografi.Metode: Penelitian ini dilakukan di laboratorium Jurusan Teknik Radiodiagnostik dan Radioterapi, Poltekkes Kemenkes Jakarta II. Prosedur yang dilakukan pada penelitian adalah dengan simulasi apabila pekerja menerima paparan radiasi primer dan sekunder pada jarak 100 cm dengan rentang faktor eksposi 45-100kVp. Apron yang digunakan berbahan timbal (Pb) dengan ketebalan 0.35 mmPb dan, untuk pekerja radiasi, diganti dengan menggunakan pantom anthorophomorpic. Penggunaan luas lapangan sesuai kondisi klinis yaitu 18 cm x 24 cm, 43 cm x 35 cm, dan kemudian dilakukan analisis efektivitas apron Pb terhadap perubahan faktor eksposi.Hasil: Hasil penelitian menunjukkan bahwa efektivitas penggunaan apron 0.35 mmPb pada rentang tegangan tabung 45-100kVp untuk kedua penggunaan luas lapangan memiliki nilai persentasi yang sama 99.9-93%.Kesimpulan: Peningkatan tegangan tabung menyebabkan terjadinya penurunan atenuasi apron Pb.
Implementasi Pemahaman Radiografer terhadap Exposure Index dalam Optimasi Prosedur Pemeriksaan Radiografi Computed Radiography Muhammad Irsal; Guntur Winarno; Shinta Gunawati Sutoro
Jurnal Imejing Diagnostik (JImeD) Vol 10, No 1: JANUARY 2024
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v10i1.10665

Abstract

Background: Increasing the exposure factor is often carried out by radiographers to reduce noise and maintain image quality in computer radiography (CR). Therefore, there is a need for awareness and understanding of the exposure index (EI) to implement optimization procedures in radiographic examinations. Methods: The research method is descriptive and analytical by providing questionnaires to radiographers in PA chest radiographic examinations. This research was carried out at hospitals A, B, and C in the Jakarta-Bogor area with the research carried out between August – October 2023. Statistical analysis used SPSS 27 with data coding previously. After that, the data is processed with descriptive statistics to determine the frequency, distribution, percentage, average, and standard deviation. Then, the test chi-square to determine the relationship between gender, age, education, and work experience in understanding CR optimization procedures. Next, to find out the relationship between age and weight and EI, a test was carried out by Pearson test to determine the level of relationship between the two variablesResults: was found that the level of awareness and understanding of radiographers regarding optimization procedures using EI is still low. Test results chi-square age-understanding 0.309, gender-understanding 0.772, education-understanding 0.036, experience-understanding 0.201. next are the test results Pearson for Hospital-A: age-EI 0.09, weight-EI -0.49, Hospital-B: age-EI -0.21, weight-EI 0.06, Hospital-C: age-EI -0.37, weight-EI 0.56. Conclusions:  implementing EI in the optimization procedure, it needs to be confirmed by measuring the patient's radiation dose so that there are no errors in implementing the optimization.
Evaluation of CT angiography of the thoracic aorta with ECG gating in cases of dissection Widiatmoko, Mahfud Edy; Supriyaningsih, Eny; Sutoro, Shinta Gunawati; Irsal, Muhammad; Anggraeni, Dewi
International Journal of Health Science and Technology Vol. 6 No. 1 (2024): July
Publisher : Universitas 'Aisyiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31101/ijhst.v6i1.3668

Abstract

Type A aortic dissection is a longitudinal tear separating the intima layer from the aortic media and is often not clearly visible due to cardiac motion which can reduce image quality and misrepresent the lumen so that the flowing blood causes several problems such as the aortic root and ascending aorta. CT angiography with ECG gating was chosen to reduce the images of cardiac movement. The purpose is to evaluate the examination procedure and anatomical description of the CT Angiography examination with Gating ECG. The research method is descriptive qualitative research with a case study approach with samples selected based on the examination diagnosis with type A aortic dissection. Observation, documentation, interviews did data collection. Data analysis is described in a descriptive narrative, and a conclusion is drawn. The result of the study is that CT angiography examination with ECG gating provides accurate information that the coronary arteries originate from the true lumen. In this phase, there are no lines that show a significant picture of heart movement disorders so that the coronary arteries can be assessed properly. The anatomical features of MIP, CPR, and VRT visualize the aortic root region until the coronary arteries are displayed more informatively than heart movement disorders. The conclusion is that CTA examination with ECG gating can show the aortic root in cases of type A dissection located at the root or ascending aorta and minimize heart movement interference with MIP, CPR and VRT.
Optimasi Penggunaan Faktor Eksposi Pemeriksaan Ossa Manus dengan Kualitas Citra Objektif dan Subjektif Irsal, Muhammad; Alfajri, Muhammad Rival; Ananta, Vincentius Deva; Anwar, Khairil; Sriyatun, Sriyatun
Jurnal Kesehatan Vol 12 No 3 (2021): Jurnal Kesehatan
Publisher : Poltekkes Kemenkes Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26630/jk.v12i3.2653

Abstract

In producing a good radiographic image, an optimization method is needed. This study was conducted to seek optimization of the radiographic examination of the manus ossa with objective and subjective image quality analysis. The research method is quantitative experimental, using a variety of exposure factors: 40kV 4 mAs, 40kV 10 mAs, 46 kV 5 mAs, 53 kV 2,5 mAs, 61kV 1,25 mAs. Then an objective quality analysis is carried out by measuring the pixels value, Signal to Noise Ratio (SNR), and the Exposure Index (EI) value as an indicator of exposure. For subjective image analysis with the assessment of image anatomy criteria using the method Visual Grading Analysis (VGA), then the test was carried out Wilcoxon to determine the relationship of respondents to VGA assessment. The results of the study obtained that the optimization method of the examination manus ossa at the exposure factor of 46 kV 5 mAs with the results of an objective image quality analysis of the range of pixel value  183,7 - 3, the SNR range of 12,2-1,77 while the subjective image quality analysis of the results VGA all images on a variety of exposure factors can be used in establishing a diagnosis. For the exposure indicator with the lowest EI at an exposure factor of 46 kV 5 mAs. The results of the Wilcoxon p-value>0,05 so that there was no difference in the VGA value by 2 radiographers, therefore all image results on variations in exposure factors could be used in the radiographic examination of the ossa manus.
ANALYSIS EXPOSURE INDEX AS AN OPTIMIZATION EFFORT ON EXAMINATION CHEST POSTERIOR ANTERIOR Irsal, Muhammad; Syuhada, Firdha Adlia; Ananda, Yolanda Pangestu; Putra, Andre Galih Pratama; Syahputera, Muhammad Rizky; Wibowo, Syahputera; Kahar, Rizky
Journal of Vocational Health Studies Vol. 4 No. 2 (2020): November 2020 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V4.I2.2020.50-54

Abstract

Background: Radiographers are responsible for producing image quality which can provide accurate diagnostic information by considering the lowest possible radiation dose according to the As Low As Reasonably Achievable (ALARA) principle. Participation between radiographers and medical physicists is needed in optimizing efforts to control the selection of exposure factors by the required clinical radiographic examination. Purpose: To analyze the exposure index on examination chest posterior-anterior. Method: Quantitative descriptive by analyzing the percentage of exposure index results used in chest PA radiographs as an effort to optimize: image quality and radiation dose indicators on chest PA examinations. Result: Optimization of exposure percentage results of 68%, 25% underexposure, 4% underexposure, 2% overexposure, 1% overexposure (noise). Radiographers have tried to optimize: image quality and image radiation dose by selecting exposure factors that are tailored to the patient's condition and maximizing post-processing for increased quality. Conclusion: In optimizing the CR imaging system, it is necessary to understand exposure index, this is related to the underexposed, optimal, and overexposed categories, besides radiographers can take advantage of post-processing to improve image quality.
MEASUREMENT OF RADIATION EXPOSURE IN FACILITIES FOR RADIOLOGY DIAGNOSTIC AT THE COVID-19 EMERGENCY HOSPITAL IN WISMA ATLET JAKARTA Irsal, Muhammad; Syuhada, Firdha Adlia; Ananda, Yolanda Pangestu; Putra, Andre Galih Pratama; Syahputera, Muhammad Rizky; Wibowo, Syahputera
Journal of Vocational Health Studies Vol. 4 No. 2 (2020): November 2020 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V4.I2.2020.55-61

Abstract

Background: Facility design for radiology diagnostic examination was one of the concerns in the COVID-19 pandemi. This is related to the establishment of emergency department of radiology which were carried out in a very fast pace. Purpose: This study was an effort to the radiation protection for workers and public. Method: Data collection was carried out on 1-29 May 2020 at the COVID-19 Emergency Hospital in Wisma Atlet Jakarta. Result: The assessment for the area 1 was 1 = 22.38 mR /week, in the area was 2 = 5.23 mR /week, in the area 3 = 7.32 mR / week, in the area 4 = 8.67 mR /week. Thus, the exposure received is still within limits safe in the controlled area. Meanwhile, the uncontrolled area will continue to be monitored to ensure that there is no activity. Conclusion: In the  effort of protecting the workers and the public from the radiotion, the principles of radiation protection, distance, time, and shielding should always be implemented.
DOSE OPTIMIZATION WITH mAs REDUCTION OF 15% USING COMPUTED RADIOGRAPHY ON RADIOGRAPHIC EXAMINATIONS PELVIC AP PROJECTION Cahya, Intan; Irsal, Muhammad; Heru A., Nursama; Gunawati S., Shinta; Widiatmoko, Mahfud Edy
Journal of Vocational Health Studies Vol. 6 No. 1 (2022): July 2022 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V6.I1.2022.24-29

Abstract

Background: Routine pelvic radiograph examination commonly performed in diagnostic radiology services is a pelvic examination of anteroposterior projection (AP). This results in direct exposure to ionizing radiation to the internal organs in the lower abdomen, especially the reproductive organs. Purpose: Optimizing the dosage of AP projection pelvic radiographs. Method: Research is conducted quantitatively and used experimental approach with an analysis of 15% mAs reduction from the standard mAs value on AP projection pelvic examination on radiation dose and image quality using anthropomorphic phantoms. The radiation dose analysis uses the exposure index indicator. In contrast, the image quality uses the Visual Grading Analysis method, then it was continued with the Kappa Cohens test to determine the level of agreement between 2 respondents. Result: The exposure factor with the mAs value reduced by 15% from the standard exposure factor on the AP projection pelvic radiography affected the decrease in the value exposure index. The EI value generated from the optimization exposure factor shows a decrease to 300 EI, which means the dose produced is only half of the standard exposure factor dose but still produces an acceptable image, as evidenced by the VGA score. As an assessment of image quality. In this study, there was no significant difference with range VGA scores 1,7. Besides that, the test had the Kappa Cohens level of agreement with a value of 0.5-0.8. Conclusion: All images resulting from the 15% mAs value reduction variation can be used as a diagnostic assessment.
Dosimetry Evaluations in Breast Cancer Using 3D-CRT Technique Ambarsari, Laily Izzati; Irsal, Muhammad; Sutoro, Shinta Gunawati; Apriantoro, Nursama Heru; Winarno, Guntur; Lesmana, Hadi
JURNAL PROTEKSI KESEHATAN Vol 13 No 2 (2024): JPK: Jurnal Proteksi Kesehatan
Publisher : Poltekkes Kemenkes Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36929/jpk.v13i2.933

Abstract

Several previous studies have shown that without dose evaluation and monitoring, there is a potential for deterministic radiation effects in 3D-CRT procedures. This study is expected to close the gap by conducting a more comprehensive evaluation of the 3D-CRT technique for breast cancer patients. The research method is quantitative analysis with a study sample of 20 breast cancer patients. Data processing was carried out by conducting statistical tests for the distribution value of organs at risk (OAR) against the Radiation Therapy Oncology Group (RTOG) guidelines and analyzing the conformity index (CI) and homogeneity index (HI) values according to the values recommended by the International Commission Radiation Unit (ICRU). The results of this study obtained OAR doses for the lungs and heart are still within the tolerance value limits set by RTOG p-value <0.05. then for CI and HI there is a deviation p-value <0.05 that there is a difference between the values obtained and the ICRU recommended value. This is due to the location of the target or tumor adjacent to the OAR, to keep the OAR value in accordance with the specified limit value.
ANALISIS VARIASI ARUS-WAKTU TABUNG (mAs) DAN ITERATIVE RECONSTRUCTION (IR) DENGAN PENGUKURAN MODULATION TRANSFER FUNCTION (MTF) PADA CITRA CT SCAN KEPALA Zikri, Ikhwan; Irsal, Muhammad; Sutoro, Shinta Gunawati; Winarno, Guntur; Mullah, Ikra; Akhridinata, Dinda
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.41433

Abstract

To optimize head CT examination protocols, tube current-time (mAs) variation and the use of iterative reconstruction (IR) are often combined to decrease radiation dose to patients, which may have an impact on image quality and radiation dose. Modulation transfer function (MTF) is an objective measurement to determine the spatial resolution of CT images, so it is expected to provide information on ideal optimization parameters considering radiation dose and image quality. The research method is quantitative descriptive type, data collection was carried out at one of the hospitals in Padang in the August-December period of 2024. Then CT imaging was performed using a head CT protocol that was exposed to the phantom daily CT QC with variations in tube-current of 200 mAs, 300 mAs and a combination of IR with iDose and without iDose. The analysis was performed on 10 pieces of head CT images which will then calculate the 50% MTF value using imageJ. After that, the results of the study will be carried out by making a graph of the average value and a comprehensive literature review is carried out to analyze the tube current-time variation with MTF measurements on head CT images. The results showed that the MTF values of the time-current tube and IR variations tended to have the same pattern for all, so that in this study it can be said that variations in tube current-time (mAs) and iterative reconstruction (IR) cannot affect MTF.
Co-Authors Akhridinata, Dinda Alfajri, Muhammad Rival Ambarsari, Laily Izzati Ananda, Yolanda Pangestu Ananta, Vincentius Deva Andri Yansyah Asumsie Tarigan Aulia Narendra Mukhtar Aulia Narindra Mukhtar Bambang Suroso Bambang Sutrisno Wibowo Cahya, Intan Claricia Alamanda Karenina Dewi ANGGRAENI Eka Putra Syarif Hidayat Elok Nur Afiifah Fahrizal Fitrus Ardoni Gando Sari Gando Sari Gunawati S., Shinta Guntur Winarno Guntur Winarno Guntur Winarno Guntur Winarno Guntur Winarno Guntur Winarno Heri Kuswoyo Kahar, Rizky Khairil Anwar Legia Prananto Legia Prananto Leony Valencia Purba Lesmana, Hadi Mahfud Edy H Mahfud Edy Widiatmoko Mayarani Mayarani Mayarani Muhammad Ichsan Mullah, Ikra Nita Priska Ambarita Nurbaiti Nurbaiti Nurbaiti Nurbaiti NURSAMA HERU APRIANTORO Prima Chintya Delsi Kasih Putra, Andre Galih Pratama Rahadian Ahmad Maulana Rinda Nur Hidayati Rizal Akbar Robert Kristian Shinta Gunawati Shinta Gunawati Shinta Gunawati Sutoro Shinta Gunawati Sutoro Siti Rahmi Sriyatun Sriyatun, Sriyatun Supriyaningsih, Eny Syahputera, Muhammad Rizky Syuhada, Firdha Adlia Tsaltsah Khoiriyah Vira Amanda Wahyu Hidayat Wibowo, Syahputera Widiatmoko, Mahfud Edy Winarno, Guntur Yuly Ekayanti Zikri, Ikhwan