The Study of Forward Scattering Dose according to the Thickness of Filter in General Radiography

일반촬영 검사에서 필터 두께 증가에 따른 전방산란율에 관한 연구

Choi, Il Hong;Kim, Kyo Tae;Heo, Ye Ji;Kang, Sang Sik;Noh, Si Cheol;Jung, Bong Jae;Nam, Sang Hee;Park, Ji Koon

  • Received : 2015.09.20
  • Accepted : 2015.12.25
  • Published : 2015.12.31


Recently there has been increasing interest in the filter to reduce the proportion of low-energy photons in the polychromatic X-ray, affect the quality of the image quality by X-ray hardening effect is a situation that has been overlooked. In this study, by evaluating the change in FSR based on the filter and it was quantitatively discuss scatter dose affecting the medical image quality. The results of the experiment, as the thickness of the filter is increased, up to 13.9%p, that tends to FSR increases appearance were evaluated. Based on these results, in compliance with the thickness of the filter that has been recommended in KS standard, even while reducing the radiation dose of the patient, in addition to the noise to about 1%p within the FSR only medical image the contribution to it is conceivable. Therefore, even while reducing radiation dose of the patient, in order to improve the quality of the medical image, the use of appropriate filter is considered important.


General Radiography;Medical Image;Filter;Beam Hardening Effect;Forward Scattering Dose


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  1. The Study of Affecting Image Quality according to forward Scattering Dose used Additional Filter in Diagnostic Imaging System vol.10, pp.8, 2016,


Supported by : Intemalional University of korea