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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국의학물리학회 의학물리 의학물리 제30권 제4호
발행연도
2019.1
수록면
89 - 93 (5page)

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Purpose: This study aims to develop new markers based on silicone rubber and urethane rubber to enhance visibility in low magnetic field magnetic resonance (MR) imaging. Methods: Four types of markers were fabricated using two different base materials. Two of the markers were composed of two different types of silicone rubber: DragonSkinTM 10 MEDIUM and BodyDoubleTM SILK. The other two markers were composed of types of urethane rubber: PMCTM 780 DRY and VytaFlexTM 20. Silicone oil (KF-96 1000cs) was added to the fabricated markers. The allocated amount of oil was 20% of the weight (wt%) of each respective marker. The MR images of the markers, with and without the silicone oil, were acquired using MRIdian with a low magnetic field of 0.35 T. The signal intensities of each MR image for the markers were analyzed using ImageJ software and the visibility for each was compared. Results: T he h ighest s ignal i ntensity w as o bserved i n V ytaFlexTM 20 (279.67±3.57). Large differences in the signal intensities (e.g., 627% in relative difference between BodyDoubleTM SILK and VytaFlexTM 2 0) a mong t he m arkers w ere o bserved. H owever, t he m aximum d ifference between the signal intensities of the markers with the silicone oil showed only a 62% relative difference between PMCTM 7 80 D RY a nd D ragonSkinTM 10 MEDIUM. An increase in the signal intensity of the markers with the silicone oil was observed in all markers. Conclusions: New markers were successfully fabricated. Among the markers, DragonSkinTM 10 MEDIUM with silicone oil showed the highest MR signal intensity.

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