Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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A Study on the Fabrication and Comparison of the Phantom for Computed Tomography Image Quality Measurements Using Three-Dimensions Printing Technology

삼차원 프린팅 기술을 이용한 전산화단층영상 품질 측정용 팬텀 제작 및 비교 연구

  • Yoon, Myeong-Seong (Department of Radiological Science, Health Sciences College, Eulji University) ;
  • Hong, Soon-Min (Device Development Team, GreenCross Medical Science) ;
  • Heo, Yeong-Cheol (Department of Radiological Science, Health Sciences College, Eulji University) ;
  • Han, Dong-Kyoon (Department of Radiological Science, Health Sciences College, Eulji University)
  • 윤명성 (을지대학교 보건과학대학 방사선학과) ;
  • 홍순민 (녹십자MS 기기개발팀) ;
  • 허영철 (을지대학교 보건과학대학 방사선학과) ;
  • 한동균 (을지대학교 보건과학대학 방사선학과)
  • Received : 2018.10.30
  • Accepted : 2018.11.16
  • Published : 2018.12.31
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Abstract

Quality control (QC) of Computed Tomography (CT) devices is based on image quality measurement on AAPM CT phantom which is a standard phantom. Although it is possible to control the accuracy of the CT apparatus, it is expensive and has a disadvantage of low penetration rate. Therefore, in this study, we make image quality measurement phantom at low cost using FFF (Fused Filament Fabrication) type three-dimensional printer and try to analyze the usefulness, compare it with existing standard phantom. To print a phantom, We used three-dimensional printer of the FFF system and PLA (Poly Lactic Acid, density: $1.24g/cm^3$) filament, and the CT device of 64 MDCT (Aquilion CX, Toshiba, Japan). In addition, we printed a phantom using three-dimensional printer after design using various tool based on existing standard phantom. For image quality evaluation, AAPM CT phantom and self-generated phantom were measured 10 times for each block. The measured data were analyzed for significance using the Mannwhiteney U-test of SPSS (Version 22.0, SPSS, Chicago, IL, USA). As a result of the analysis, phantom fabricated with three-dimensional printer and standard phantom showed no significant difference (p>0.05). Furthermore, we confirmed that image quality measurement performance of a phantom using three-dimensional printer is similar to the existing standard phantom. In conclusion, we confirmed the possibility of low cost phantom fabrication using three dimensional printer.

Keywords

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