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http://dx.doi.org/10.7742/jksr.2018.12.5.549

The Study on Scattered Radiation Effects According to Acquisition of X-ray Imaging using Monte Carlo Simulation  

Park, Ji-Koon (Institute of Radiation Fusion Technology, International University of Korea)
Kang, Sang-Sik (Institute of Radiation Fusion Technology, International University of Korea)
Yang, Seung-Woo (Department of Radiological Science, International University of Korea)
Heo, Ye-Ji (Department of Medical Imaging Research Institute, Inje University)
Kim, Kyo-Tae (Software Education Institute, Inje University)
Publication Information
Journal of the Korean Society of Radiology / v.12, no.5, 2018 , pp. 549-555 More about this Journal
Abstract
The medical imaging technique images the contrast formed based on the difference in absorption coefficient of X-rays which changes according to the composition and thickness of the object. At this time, not only primary rays entering the image detector but also scattered rays greatly affect the image quality. Therefore, in this paper, Forward scattering rate and Scattered to primary ratio analysis were performed through Monte Carlo simulation in order to consider influence of scattered ray generated according to object thickness and radiation exposure area change on image quality. In the study, the Forward scattering rate corresponding to the thickness of the object was analyzed at a maximum of 15.3%p and the Scattered to primary ratio was analyzed at 2.00 to 4.54, but it was analyzed as maintaining a constant value for radiation exposure area change. Based on these results, the thickness of the object should be considered as a factor influencing the quality of the image, but radiation exposure area verified that it is a factor that does not affect the image quality. We believe that the results of this research can be utilized as basic information of scattered radiation to improve image quality.
Keywords
Monte carlo simulation; Image quality; ANSI chest phantom; Forward scattering rate; Scattered to primary ratio;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 J. H. Kwak, J. B. Jeong, "A Study on the Guardian's perception of Attending Patient in Pediatric Radiology," Journal of the Korean Society of Radiology, Vol. 8, No. 4, pp. 189-201, 2014.   DOI
2 S. G. Choi, "Change of the Scattered Dose by Field Size in X-ray Radiography," International Journal of Contents, Vol. 13, No. 3, pp. 198-203, 2013.
3 P. K. Cho, "Distribution of the Scatter Ray on Chest X-ray Examinations," International Journal of Contents, Vol. 12, No. 7, pp. 255-260, 2012.
4 J. S. Lee, C. S. Kim, "The Additional Filter and Ion Chamber Sensor Combination for Reducing Patient Dose in Digital Chest X-ray Projection," Journal of Korean Society of Radiology, Vol. 9, No. 3, pp. 174-181, 2015.
5 S. K. Na, S. H. Han, "A Study on the Factors of Spatial Scattered Ray Occurrence in the X-ray Radiography Room," Journal of the Korean Society of Radiological Technology, Vol. 32, No. 4, pp. 393-399, 2009.
6 M. J. Whan, H. S. Gyu, J. M. Kim, J. A. Lee, K. W. Kim, H. W. Jeong, "Evaluation of scatter radiation in digital radiological condition by using phostimulated luminescence (BaFBr:Eu2+)", Journal of the Korean Society of Radiological Technology, Vol. 37, No. 2, pp. 85-91, 2014.
7 "Patient Dose Reference Levels Guidelines of General Radiology," Korea Food & Drug Administration, Radiation safety management series, No. 30, 2012.
8 American Association of Physicists in Medicine, "Standardized methods for measuring diagnostic x-ray exposures," AAPM Report no. 31, 1990.
9 American Association of Physicists in Medicine, "Instrumentation requirements of diagnostic radiological physicists," AAPM Report no. 60, 1998.
10 J. M. Boone, J. A Seibert, "An accurate method for computer-generating tungsten anode x-ray spectra from 30 to 140 kV," Medical Physics. Vol. 24, No. 11, pp. 1661-1670, 1997.   DOI
11 C. H. Baek, "A Study of Scattered Radiation Effect on Digital Radiography Imaging System," Journal of Radiological Science and Technology and Technology, Vol. 40, No. 1, pp. 71-78, 2017.   DOI