Frequency-domain quantification based on the singular value decomposition and frequency-selection for magnetic resonance spectra / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 249-252, 2010.
Article
in Zh
| WPRIM
| ID: wpr-341642
Responsible library:
WPRO
ABSTRACT
The frequency-domain magnetic resonance spectroscopy (MRS) is achieved by the Fast Fourier Transform (FFT) of the time-domain signals. Usually we are only interested in the portion lying in a frequency band of the whole spectrum. A method based on the singular value decomposition (SVD) and frequency-selection is presented in this article. The method quantifies the spectrum lying in the interested frequency band and reduces the interference of the parts lying out of the band in a computationally efficient way. Comparative experiments with the standard time-domain SVD method indicate that the method introduced in this article is accurate and timesaving in practical situations.
Full text:
1
Index:
WPRIM
Main subject:
Algorithms
/
Computer Simulation
/
Signal Processing, Computer-Assisted
/
Brain
/
Magnetic Resonance Spectroscopy
/
Fourier Analysis
/
Metabolism
/
Methods
Limits:
Humans
Language:
Zh
Journal:
Journal of Biomedical Engineering
Year:
2010
Type:
Article