Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Evaluation of the Applicability of PET/CT Phantom as a 3D Printing Material

PET/CT 팬텀의 3D 프린팅 소재 적용 가능성 평가

  • Lee, Ju-young (Department of Radiological Technology, Songho University) ;
  • Kim, Ji-Hyeon (Department of Nuclear Medicine, Seoul Medical Center) ;
  • Park, Hoon-Hee (Department of Radiological Science, Shingu College)
  • Received : 2022.07.31
  • Accepted : 2022.09.23
  • Published : 2022.10.31
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Abstract

The purpose of this study is to present objective information in applying 3D printing technology for PET/CT (Positron Emission Tomography/Computed Tomography) performance evaluation and use it as a basic research that can be applied to various purposes in the future. Phantoms were manufactured with step wedge of ABS(Acrylonitrile Butadiene Styrene) and ACR(Acrylic acid) material. The counts for each ROI(Region of Interest) were analyzed through image acquisition in PET/CT. And the variation rate of counts and CNR(Contrast Noise Ratio) was evaluated. In the counts analysis, the effect of thickness occurred. In addition, in the variation rate analysis, the thickness setting of steps wedge 4 to 5 levels should be considered first. These results minimize quantitative and qualitative changes in the phantom manufactured based on 3D printing, and enable more stable PET/CT performance evaluation. Based on 3D printing in PET/CT, various phantoms are expected to be produced in the future. If the characteristics of each material are considered and applied through the basic research such as this research, the result of the phantom manufactured through 3D printing can be more meaningful and will be used in a wide range.

Keywords

Acknowledgement

This study was carried out as a research fund support project of the Industry-Academic Cooperation Foundation of Shingu College.

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