A new method of distinguishing weak and overlapping signals of proton magnetic resonance spectroscopy / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1052-1057, 2012.
Artigo
em Chinês
| WPRIM
| ID: wpr-246508
ABSTRACT
In this paper, a new method of combining translation invariant (TI) and wavelet-threshold (WT) algorithm to distinguish weak and overlapping signals of proton magnetic resonance spectroscopy (1H-MRS) is presented. First, the 1H-MRS spectrum signal is transformed into wavelet domain and then its wavelet coefficients are obtained. Then, the TI method and WT method are applied to detect the weak signals overlapped by the strong ones. Through the analysis of the simulation data, we can see that both frequency and amplitude information of small-signals can be obtained accurately by the algorithm, and through the combination with the method of signal fitting, quantitative calculation of the area under weak signals peaks can be realized.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Prótons
/
Algoritmos
/
Simulação por Computador
/
Processamento de Sinais Assistido por Computador
/
Espectroscopia de Ressonância Magnética
/
Análise de Ondaletas
/
Métodos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2012
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS