지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2025.3
- 수록면
- 40 - 47 (8page)
- DOI
- 10.4283/JMAG.2025.30.1.40
이용수
초록· 키워드
오류제보하기
This study aimed to assess the impact of using a high-dielectric pad on ultra-high field magnetic resonance imaging (MRI) at field strengths of ≥7T. We aimed to investigate whether this pad could enhance T1 weighted brain imaging, influence brain segmentation, and affect diffusion tensor imaging (DTI). This study was conducted with a group of four volunteers, using a 7 Tesla MRI system and custom-made high-dielectric pad. T1 weighted brain images were acquired with and without the high-dielectric pad to observe changes in tissue contrast and signal intensity. Brain segmentation was performed to quantify cerebellar volumes, addressing B1 field inhomogeneity concerns. DTI was employed to examine cerebellar mean diffusivity (MD), fractional anisotropy (FA), and quantitative anisotropy (QA) values. The high-dielectric pad significantly improved tissue contrast and signal intensity in T1 weighted brain images without signal distortions. Brain segmentation indicated no difference in cerebellar volumes between images acquired with and without pad. In DTI analysis, the high-dielectric pad influenced cerebellar QA values, potentially enhancing DTI sensitivity and accuracy. This study suggests that high-dielectric pad may improve image quality in ultra-high field MRI, especially in T1-weighted and DTI brain imaging. The pad also appears to predominantly increase QA values in the cerebellum.
목차
1. Introduction
2. Methods
3. Results
4. Discussion
5. Conclusions
References
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