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
- 2023.12
- 수록면
- 493 - 500 (8page)
- DOI
- 10.4283/JMAG.2023.28.4.493
이용수
초록· 키워드
오류제보하기
In an MRI scan, the larger the patient’s body, the farther away the test target area is from the center. Therefore, this study aims to measure the changes in image quality according to distance from the center of the MRI machine’s bore and provide a reference distance that does not cause image degradation during actual examinations. The data from a total of nine points at 5 cm, 10 ㎝, 15 ㎝, and 20 ㎝ away from the center of the MRI bore in both directions were obtained and compared with the measurement data of the isocenter. As for the experimental equipment, the 3.0 Tesla MRI device and the 16-channel GEM Flex Suite (small) were used to acquire the TI and T2 images of the old Phantom. Furthermore, the Image J program analyzed the mean difference between SNR and CNR. As a result of the statistical analysis, The one-way batch ANOVA and Duncan’s posthoc test results showed no statistically significant difference between the measurements from the center at 5 ㎝, 10 ㎝, and 15 ㎝ positions (p ＜ 0.001). However, at the 20 ㎝ position, the standard deviation of the noise increased by more than 10 %, for the values of SNR and CNR to decrease rapidly.
목차
1. Introduction
2. Experimental Procedure
3. Results
4. Discussion
5. Conclusion
References
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