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적층 제조형 방식의 3D 프린터로 제작한 뇌 팬텀의 유용성

Usefulness of Brain Phantom Made by Fused Filament Fabrication Type 3D Printer

방사선기술과학 2020년 43권 6호 p.453 ~ 460
이용기, 안성민,
소속 상세정보
이용기 ( Lee Yong-Ki ) - Chungbuk Health and Science University Department of Radiological Technology
안성민 ( Ahn Sung-Min ) - Gachon University Department of Radiological Science

Abstract


The price of the Brain phantom (Hoffman 3D brain phantom) used in nuclear medicine is quite expensive, it is difficult to be purchased by a medical institution or an educational institution. Therefore, the purpose of present research is to produce a low-price 3D brain phantom and evaluate its usefulness by using a 3D printer capable of producing 3D structures. The New 3D brain phantom consisted of 36 slices 0.7 mm thick and 58 slices 1.5 mm thick. A 0.7 mm thick slice was placed b etween 1 . 5 mm thick slices t o produce a c omposite s lice. ROI was s et a t the gray matter and white matter scanned with CT to measure and compare the HU, in order to verify the similarity between PLA which was used as the material for the New 3D brain phantom and acrylic which was used as the material for Hoffman 3D brain phantom. As a result of measuring the volume of each Phantom, the error rate was 3.2% and there was no difference in the signal intensity in five areas. However, there was a significant difference in the average values of HU which was measured at the gray and white matter to verify the similarity between PLA and acrylic. By reproducing the previous Hoffman 3D brain phantom with a 100 times less cost, I hope this research could contribute to be used as the fundamental data in the areas of 3D printer, nuclear medicine and molecular imaging and to increasing the distribution rate of 3D brain phantom.

키워드

적층 제조형; 3D 프린터; 뇌 팬텀; 호프만 팬텀; 양전자방출단층촬영; 핵의학
Fused Filament Fabrication; 3D Printer; Brain Phantom; Hoffman Phantom; PET/CT; Nuclear Medicine

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