MR spectroscopy of amygdala: investigation of methodology / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 714-718, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-352180
ABSTRACT
This study was aimed to optimize the methods of magnetic resonance spectroscopy (MRS) to improve its quality in amygdala. Forty-three volunteers were examined at right and left amygdala using stimulated-echo acquisition mode (STEAM), and point-resolved spectroscopy series (PRESS) with and without saturation bands. The Cr-SNR, water-suppression level, water full width at half maximum (FWHM) and RMS noise of three sequences were compared. The results showed that (1) the Cr-SNR and water-suppression lelvel of PRESS with saturation bands were better than that of PRESS without saturation bands and STEAM (P<0.001); (2) the left and right RMS noise was significantly different both using PRESS with saturation bands and using STEAM (P<0.05); (3) there was a positive, significant correlation between Cr-SNR and voxel size (P<0.05). Therefore, PRESS with saturation bands is better than PRESS without saturation bands or STEAM for the spectroscopy of amygdala. It is also useful to make the voxel as big as possible to improve the spectral quality.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Padrões de Referência
/
Algoritmos
/
Reconhecimento Automatizado de Padrão
/
Espectroscopia de Ressonância Magnética
/
Artefatos
/
Tonsila do Cerebelo
/
Metabolismo
/
Métodos
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2013
Tipo de documento:
Artigo
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