Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Development and Evaluation of the Usefulness for Hoffman Brain Phantom Based on 3D Printing Technique

3D 프린팅 기법 기반의 Hoffman Brain 팬텀 개발 및 유용성 평가

  • Park, Hoon-Hee (Department of Radiological Technology, Shingu College) ;
  • Lee, Joo-Young (Department of Radiological Technology, Shongho University)
  • Received : 2019.11.28
  • Accepted : 2019.12.13
  • Published : 2019.12.31
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Abstract

The purpose of this paper is to recognize the usefulness of the Phantom produced with 3D printing technology by reproducing the original phantom with 3D printing technology. Using CT, we obtained information from the original phantom. The acquired file was printed by the SLA method of ABS materials. For inspection, SPECT/CT was used to obtain images. We filled the both Phantom with a solution mixed with 99mTcO4 1 mCi in 1 liter of water and acq uired images in accordance with the standard protocol. Using Image J, the SNR for each slice of the image was obtained. As a reference images, AC images were used. For the analysis of acquired images, ROI was set in the White mater and Gray mater sections of each image, and the average Intensity Value within the ROI were compared. According to the results of this study, 3D printed phantom's SNR is about 0.1 higher than the conventional phantom. And the ratio of Intensity Value was shown in the original 1 : 3.4, and the printed phantom was shown to be 1 : 3.2. Therefore, if Calibration Value is applied, It is assumed that it can be used as an alternative to the original.

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