Analysis of Pixel Values in Lateral Os Sacrum Radiographic Examinations Using Various Virtual Grid Ratios
Keywords:
Virtual Grid, Os Sacrum, Pixel Value
Abstract
Lumbosacral lateral projection radiography, particularly of the fifth lumbar vertebra (L5) and Sacrum, often experiences a decrease in contrast due to exposure factors and object thickness. This study aims to analyze the variation in the Virtual Grid ratio of 8:1, 10:1, and 12:1 in lateral projection sacrum examinations using the Pixel Value indicator. This descriptive quantitative study was conducted in May–June 2025 at the Radiography and Physics Laboratory, Department of Radiodiagnostic and Radiotherapy Technology, Jakarta II Polytechnic. The sample consisted of lateral sacrum images with three grid ratio variations. Analysis was performed on the average Pixel Value, followed by statistical testing using SPSS 27 with the One-Way ANOVA method. The results showed the average Pixel Value: 8:1 ratio at 150.94; 10:1 ratio at 150.46; and 12:1 ratio at 152.75 with P>0.05, indicating no significant difference between the grid ratio variations.
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[4] R. R. Carlton, A. M. Adler, and V. Balac, Principles of Radiographic Imaging: An Art and a Science, Sixt Editi. 2020. doi: 10.1201/9781315120928.
[5] T. Kawamura, S. Naito, K. Okano, and M. Yamada, “Improvement in Image Quality and Workflow of X-ray Examination Using a New Image Processing Method, ‘Virtual Grid Technology,’” FUJIFILM Res. Dev., no. 60, pp. 21–27, 2015.
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[8] T. Report and A. T. Group, Acceptance Testing and Quality Control of Digital Radiographic Imaging Systems The Report of AAPM Task Group 150, no. 150. 2024.
[9] Setyawan Dodiet Aditya, Petunjuk Praktikum-Uji Normalitas dan Homogenitas Data dengan SPSS, no. July. 2021. [Online]. Available: https://www.researchgate.net/publication/350480720
[10] P. Sprawls. Jr, Physical Principles of Medical Imaging. 2nd ed, vol. 200, no. 2. 1996. doi: 10.1148/radiology.200.2.504.
[11] Q. B. Carroll, “Radiography In The Digital Age : Physics, Exposure, Radiation Biology”, Fourth., vol. 11, no. 1. Includes index, 2023. [Online]. Available: http://scioteca.caf.com/bitstream/handle/123456789/1091/RED2017-Eng-8ene.pdf?sequence=12&isAllowed=y%0Ahttp://dx.doi.org/10.1016/j.regsciurbeco.2008.06.005%0Ahttps://www.researchgate.net/publication/305320484_SISTEM_PEMBETUNGAN_TERPUSAT_STRATEGI_MELESTARI
[12] S. C. Bushong, Radiologic Science for Technologists Physics, Biology, and Protection, Texas: Eleventh E, 2017.
[13] T. L. Fauber, Radiographic Imaging and Exposure, Fifth edit. Elsevier Inc., 2016.
[14] A. Pascoal, C. P. Lawinski, I. Honey, and P. Blake, “Evaluation of a software package for automated quality assessment of contrast detail images - Comparison with subjective visual assessment,” Phys. Med. Biol., vol. 50, no. 23, pp. 5743–5757, 2005, doi: 10.1088/0031-9155/50/23/023.
[15] Rini Hatma Rusli and Bambang Ariyanto, “Pengaruh Pengaturan Processing Digital Radiography Terhadap Kualitas Gambar Pada Pemeriksaan Lumbosacral Posisi Lateral Di Rumah Sakit Bhayangkara Makassar,” J. Sains dan Kesehat., vol. 6, no. 2, pp. 105–110, 2024, doi: 10.57214/jusika.v6i2.514.
[16] A. M. Dydyk, S. Forro, and J. Gutcho, “Sacroiliac Joint Injury”, Europe PMC, [Online]. Available: https://www.ncbi.nlm.nih.gov/books/NBK557881/
[17] J. Choi, G. Kim, D. Hong, H. Kim, and D. Han, “Study on the Standardizaton of Signal Intensity Scale of Pixel Value in Digital Radiography”, Indian Journal, vol. 9, no. December, pp. 1–5, 2016, doi: 10.17485/ijst/2016/v9iS1/109898.
[18] T. Gossye et al., “Evaluation of Virtual Grid processed clinical pelvic radiographs,” J. Appl. Clin. Med. Phys., vol. 25, no. 6, pp. 1–8, 2024, doi: 10.1002/acm2.14353.
[19] B. W. Long, J. H. Rollins, and B. J. Smith, Merrill ’ S Atlas of, Radiographic Positioning dan Procedures, FIFTEENTH. 2023.
[20] D. R. Dance, S. Christofides, A. D. A. Maidment, I. D. McLean, and K. H. Ng, “Diagnostic Radiology Physics: A Handbook For Teachers And Students”, Atomic Energy Agency, 2014. doi: 10.1201/9781482266641-12.
Published
2025-07-17
How to Cite
YustiyoR., SutoroS. G., IrsalM., RizqiM., & ArdoniF. (2025). Analysis of Pixel Values in Lateral Os Sacrum Radiographic Examinations Using Various Virtual Grid Ratios. JPK : Jurnal Proteksi Kesehatan, 14(1), 41-46. https://doi.org/10.36929/jpk.v14i1.1124
Section
Articles
