Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1998 Issue 11
- /
- Pages.121-122
- /
- 1998
Study of the correlation between proton brain metabolites and perturbed magnetic field variations
양성자 뇌대사물질들과 섭동된 자장변화와의 상관관계에 관한 연구
- Baik, H.M. (Dept. of Biomedical Eng., The Catholic University of Korea) ;
-
Choe, B.Y.
(Dept. of Biomedical Eng., The Catholic University of Korea)
;
-
Suh, T.S.
(Dept. of Biomedical Eng., The Catholic University of Korea)
;
- Lee, H.G. (Dept. of Biomedical Eng., The Catholic University of Korea) ;
-
Lee, H.K.
(Dept. of Biomedical Eng., The Catholic University of Korea)
;
- Kim, S.E. (Dept. of Biomedical Eng., The Catholic University of Korea) ;
-
Shin, K.S.
(Dept. of Biomedical Eng., The Catholic University of Korea)
- 백현만 (가톨릭의대 의공학교실) ;
-
최보영
(가톨릭의대 의공학교실)
;
-
서태석
(가톨릭의대 의공학교실)
;
- 이형구 (가톨릭의대 의공학교실) ;
-
이홍규
(가톨릭의대 의공학교실)
;
- 김성은 (가톨릭의대 의공학교실) ;
-
신경섭
(가톨릭의대 의공학교실)
- Published : 1998.11.20
Abstract
To induce perturbed magnetic field variations in the range of auto prescans permitted, we chose artificially shim values and applied manualy as DC offsets to X, Y, Z gradient amplifiers. The STEAM spectra were obtained from a localized region (8ml) of phantom's center and a Marquart Algorithm is employed to quantify MRS spectra. Results indicated that Creatine (Cr) which had a good correlation between a signal intensity and an area, changed little bit and showed extremly a stabilized state in perturbed magnetic field variations. Therefore, during the MRS experiments, to minimize the SNR reduction by means of unavoidable inhomogeneous magnetic fields, the present study suggested that the quantification method of relative ratios produced by replacing Cr concentration with standard quantify was most desirable.
Keywords