한국의학물리학회지:의학물리 (Progress in Medical Physics)

  • 제30권4호
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  • Pages.155-159
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  • 2019
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  • 2508-4445(pISSN)
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  • 2508-4453(eISSN)
한국의학물리학회 (Korean Society of Medical Physics)
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Radiological Characteristics of Materials Used in 3-Dimensional Printing with Various Infill Densities

  • Park, So-Yeon (Department of Radiation Oncology, Veterans Health Service Medical Center) ;
  • Choi, Noorie (Department of Radiation Oncology, Veterans Health Service Medical Center) ;
  • Choi, Byeong Geol (Department of Radiation Oncology, Veterans Health Service Medical Center) ;
  • Lee, Dong Myung (Department of Radiation Oncology, Veterans Health Service Medical Center) ;
  • Jang, Na Young (Department of Radiation Oncology, Veterans Health Service Medical Center)
  • 투고 : 2019.12.13
  • 심사 : 2019.12.18
  • 발행 : 2019.12.31
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초록

Radiological properties of newly introduced and existing 3-dimensional (3D) printing materials were evaluated by measuring their Hounsfield units (HUs) at varying infill densities. The six materials for 3D printing which consisted of acrylonitrile butadiene styrene (ABS), a unique ABS plastic blend manufactured by Zortrax (ULTRAT), high impact polystyrene (HIPS), polyethylene terephthalate glycol (PETG), polylactic acid (PLA), and a thermoplastic polyester elastomer manufactured by Zortrax (FLEX) were used. We used computed tomography (CT) imaging to determine the HU values of each material, and thus assess its suitability for various applications in radiation oncology. We found that several material and infill density combinations resembled the HU values of fat, soft tissues, and lungs; however, none of the tested materials exhibited HU values similar to that of bone. These results will help researchers and clinicians develop more appropriate instruments for improving the quality of radiation therapy. Using optimized infill densities will help improve the quality of radiation therapy by producing customized instruments for each field of radiation therapy.

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참고문헌

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피인용 문헌

  1. Infill selection for 3D printed radiotherapy immobilisation devices vol.6, pp.6, 2019, https://doi.org/10.1088/2057-1976/abb981
  2. Radiological characteristics of a new experimental rubber elastomeric polymer used in three-dimensional printing with different infill densities and patterns vol.4, pp.12, 2019, https://doi.org/10.1088/2399-6528/abd1c3