Optimasi Penggunaan Faktor Eksposi Pemeriksaan Ossa Manus dengan Kualitas Citra Objektif dan Subjektif
DOI:
https://doi.org/10.26630/jk.v12i3.2653Keywords:
Exposure factor, Image quality, Optimization method.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.
References
Carroll, Q. B. (2018). Radiography in the Digital Age: Physics-exposure-radiation biology. Charles C Thomas Publisher.
Christian, A., Suparta, G. B., Fisika, J., Mipa, F., Gadjah, U., Sekip, M., & Yogyakarta, U. (2014). Pengukuran Kualitas Sistem Pencitraan Radiografi Digital Sinar-X. Bimipa, 24(2), 149–166.
Dalah, E. Z. (2020). Quantifying dose-creep for Skull and chest radiography using dose area product and entrance surface dose: Phantom study. Radiation Physics and Chemistry, 167(March). https://doi.org/10.1016/j.radphyschem.2019.03.035
Fauber, T. (2016). Image Formation and Radiographic Quality. In Radiographic Imaging and Exposure. Elsevier Inc.
Irsal, M. (2021, March). Exposure Factor Control with Exposure Index Guide As Optimizing Efforts in Chest Pa Examination. In Journal of Physics: Conference Series (Vol. 1842, No. 1, p. 012059). IOP Publishing. https://doi.org/10.1088/1742-6596/1842/1/012059
Irsal, M. (2020). Evaluasi faktor eksposi dalam upaya optimisasi pada pemeriksaan chest PA suspected COVID-19. Kocenin Ser Konf (1), 1-10.
Lampignano, J. P., & Kendrick, L. E. (2018a). Bontrager’s Textbook of Radiographic Positioning and Related Anatomy. Elsevier.
Lampignano, J. P., & Kendrick, L. E. (2018b). Bontrager’s Textbook of Radiographic Positioning and Related Anatomy. Elsevier.
Lanca, L., & Silva, A. (2009). Digital radiography detectors e A technical overview : Part 2. Radiography, 15(2), 134-138. https://doi.org/10.1016/j.radi.2008.02.005
Pavan, A. L. M., Alves, A. F. F., Duarte, S. B., Giacomini, G., Sardenberg, T., Miranda, J. R. A., & Pina, D. R. (2015). Quality and dose optimization in hand computed radiography. Physica Medica, 31(8), 1065-1069. https://doi.org/10.1016/j.ejmp.2015.06.010
Pedersen, C. C. E., Hardy, M., & Blankholm, A. D. (2018). An Evaluation of Image Acquisition Techniques, Radiographic Practice, and Technical Quality in Neonatal Chest Radiography. Journal of Medical Imaging and Radiation Sciences, 49(3), 257-264. https://doi.org/10.1016/j.jmir.2018.05.006
Seibert, J. A., & Morin, R. L. (2011). The standardized exposure index for digital radiography: An opportunity for optimization of radiation dose to the pediatric population. Pediatric Radiology, 41(5), 573-581. https://doi.org/10.1007/s00247-010-1954-6
Tsalafoutas, I. A., Blastaris, G. A., Moutsatsos, A. S., Chios, P. S., & Efstathopoulos, E. P. (2008). Correlation of image quality with exposure index and processing protocol in a computed radiography system. Radiation Protection Dosimetry, 130(2), 162-171. https://doi.org/10.1093/rpd/ncm493
Uffmann, M., & Schaefer-Prokop, C. (2009). Digital radiography: the balance between image quality and required radiation dose. European journal of radiology, 72(2), 202-208. https://doi.org/10.1016/j.ejrad.2009.05.060
Veldkamp, W. J., Kroft, L. J., & Geleijns, J. (2009). Dose and perceived image quality in chest radiography. European journal of radiology, 72(2), 209-217. https://doi.org/10.1016/j.ejrad.2009.05.039
Downloads
Additional Files
Published
Issue
Section
License
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY-SA 4.0) that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
