Optimization of SR-W Radiation Shield on Radiation Dose Absorption and Radiographic Image Quality in Abdominal CT Scan Examination

Hayat Muljana, Heri Sutanto, Jatmiko Endro Suseno, Ilhan Alkian, Oktarina Damayanti

Abstract


This study aims to explore the potential use of tungsten silicon rubber composite (SR-W) with percentages of 100-0, 97-3, 91-9, 88-12, 85-15 wt% as a radiation shield on abdominal CT scans, to reduce the radiation dose of gonadal organs without significantly degrading image quality. SR-W materials are characterized through homogeneity measurements to determine the uniformity of particle distribution in the polymer matrix. Furthermore, tests were conducted to assess radiation dose reduction using anthropomorphic phantoms, either without or with the addition of SR-W, at tube voltage variations of 80, 100, 120, and 140 kVp. Image quality evaluation was conducted by comparing the areas covered and those not covered by SR-W. The results showed that SR-W with a composition of 94-6 wt% had homogeneity and the most optimal image quality compared to other composition variations. Although the highest radiation dose reduction was achieved at an 86-15 wt% composition, SR-W at 94-6 wt% provided the best balance between dose reduction, noise reduction, and image contrast enhancement on CT Scan examinations. The results of this study have the potential to be applied clinically to optimize dose and image quality in abdominal CT Scan procedures.


Keywords


CT Scan Abdominal, Silicone Rubber-Tungsten, Dose Reduction, Image Quality

Full Text:

PDF

References


I. G. P. G. Oktar Mahardika, I. B. M. Suryatika, I. K. Putra, and R. Irhas, “Penentuan Dosis Efektif Pada Abdo Pelvis dan Organ Kritis dari Hasil Penyinaran Computed Tomography Scanner (CT Scan),” Kappa J., vol. 7, no. 2, pp. 331–335, 2023, doi: 10.29408/kpj.v7i2.7676.

ICRP, “ICRP PUBLICATION 103 The 2007 Recommendations of the International Commission on Radiological Protection,” Radiat. Phys. Chem., vol. 188, no. 24, pp. 1–337, 2007, [Online]. Available: www.mdpi.com/journal/diagnostics%0Ahttp://www-pub.iaea.org/MTCD/publications/PDF/Pub1609_web.pdf%5Cnhttp://www.vomfi.univ.kiev.ua/assets/files/IAEA/Pub1462_web.pdf%0Ahttp://www.ncbi.nlm.nih.gov/pubmed/16168243

Y. Noda et al., “Radiation and iodine dose reduced thoraco-abdomino-pelvic dual-energy CT at 40 keV reconstructed with deep learning image reconstruction,” Br. J. Radiol., vol. 95, no. 1134, 2022, doi: 10.1259/bjr.20211163.

H. Sutanto, G. Wjaya, E. Hidayanto, and Z. Arifin, “Characteristic of silicone rubber as radioprotection materials on radiodiagnostic using X-ray conventional,” J. Phys. Conf. Ser., vol. 1217, no. 1, 2019, doi: 10.1088/1742-6596/1217/1/012044.

L. B. T. La, Y. K. Leong, C. Leadtherday, P. I. Au, K. J. Hayward, and L. C. Zhang, “X-ray protection, surface chemistry and rheology of ball-milled submicron Gd2O3 aqueous suspension,” Colloids Surfaces A Physicochem. Eng. Asp., vol. 501, no. 2016, pp. 75–82, 2016, doi: 10.1016/j.colsurfa.2016.04.058.

E. U. Ekpo, A. C. Hoban, and M. F. McEntee, “Optimisation of direct digital chest radiography using Cu filtration,” Radiography, vol. 20, no. 4, pp. 346–350, 2014, doi: 10.1016/j.radi.2014.07.001.

S. Kobayashi, N. Hosoda, and R. Takashima, “Tungsten alloys as radiation protection materials,” Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip., vol. 390, no. 3, pp. 426–430, 1997, doi: 10.1016/S0168-9002(97)00392-6.

N. Hidayatullah, H. Sutanto, C. Anam, and R. Amilia, “Evaluation of Elasticity , Dose Reduction , and Image Quality on Sr-Pb Shield for Thoracic CT Examination,” no. December, 2023, doi: 10.32628/IJSRST5231064.

A. N. Polosin and T. B. Chistyakova, “Assessment of the Homogeneity of Polymeric Materials Using Hounsfield Units Assessment of the Homogeneity of Polymeric Materials Using Hounsfield Units,” 2021, doi: 10.1088/1742-6596/2096/1/012169.

R. M. Marsh and M. S. Silosky, “The effects of patient positioning when interpreting CT dose metrics: A phantom study,” 2017, doi: 10.1111/ijlh.12426.

S. P. Raman and M. Mahesh, “CT Scan Parameters and Radiation Dose : Practical Advice for,” JACR, vol. 10, no. 11, pp. 840–846, 2013, doi: 10.1016/j.jacr.2013.05.032.

S. Sookpeng and C. Butdee, “Signal-to-noise ratio and dose to the lens of the eye for computed tomography examination of the brain using an automatic tube current modulation system,” Emerg. Radiol., 2016, doi: 10.1007/s10140-016-1470-6.

K. Igarashi, K. Imai, S. Matsushima, C. Yamauchi, and K. Keisuke, “Development and validation of the effective CNR analysis method for evaluating the contrast resolution of CT images,” Phys. Eng. Sci. Med., vol. 47, no. 2, pp. 717–727, 2024, doi: 10.1007/s13246-024-01400-5.

Y. Li et al., “A phantom study comparing low-dose CT physical image quality from five different CT scanners,” vol. 12, no. 1, pp. 766–780, 2022, doi: 10.21037/qims-21-245.

T. S. Mekonin and T. T. Deressu, “Image quality and radiation dose assessment for the clinically applied 16 ‑ slice CT scanner using PMMA phantom and quality assurance phantom,” 2023, doi: 10.1186/s43055-023-01038-5.

N. Kaya, M. Karaman, and R. Aksoy, “Structural , Mechanical , and Radiation Shielding Properties of Epoxy Composites Reinforced with Tungsten Carbide and Hexagonal Boron Nitride,” 2025.

E. M. L. Jr and J. M. Boone, The Essential Physics of Medical Imaging.

F. Zahroh, C. Anam, H. Sutanto, Y. Irdawati, Z. Arifin, and Y. Kartikasari, “Effect of silicone rubber-lead (Sr-pb) thickness on dose reduction and image quality as gonad shield,” J. Biomed. Phys. Eng., vol. 10, no. 6, pp. 699–706, 2020, doi: 10.31661/jbpe.v0i0.1912-1007.

J. Greffier, F. Pereira, F. Macri, J. Beregi, and A. Larbi, “Physica Medica CT dose reduction using Automatic Exposure Control and iterative reconstruction : A chest paediatric phantoms study,” 2016, doi: 10.1016/j.ejmp.2016.03.007.

B. Tomografide, O. Tüp, A. Modülasyonu, and K. Hasta, “Effects of the Use of Automatic Tube Current Modulation on Patient Dose and Image Quality in Computed Tomography,” pp. 96–103, 2019, doi: 10.4274/mirt.galenos.2019.83723.

C. Ko, S. Lee, Y. Hsieh, Y. Lee, M. M. Yao, and W. P. Chan, “Bismuth breast-shield use in chest computed tomography for ef fi cient dose reduction and suf fi cient image quality,” pp. 1–7.

J. Di Rosso, A. Krasser, S. Tschauner, and H. Guss, “Bismuth Shielding in Head Computed Tomography — Still Necessary ?,” 2024.




DOI: http://dx.doi.org/10.52155/ijpsat.v55.1.7678

Refbacks

  • There are currently no refbacks.


Copyright (c) 2025 hayat muljana

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.