Prony methods in NMR spectroscopy

✍ Scribed by Vincenza Viti; Caterina Petrucci; Piero Barone

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 107 KB
• Volume: 8
• Category: Article
• ISSN: 0899-9457
• DOI: 10.1002/(sici)1098-1098(1997)8:6<565::aid-ima9>3.0.co;2-8

✦ Synopsis

The Prony method and a modified Prony method with known statistics, assuming one has some informations on (MPM), developed to improve the performance of this technique at the underlying spectral structure, is it possible to recover such a low signal-to-noise ratio, are described and applied to analysis of structure from the FID, and if so, how? The answer will depend magnetic resonance spectroscopy (MRS) signals. Furthermore, the on both the true spectral structure and the specific recovering way in which results from MPM can be used as prior information in method used. In fact, owing to the noise presence, there is an a Bayesian model is also described. First, analysis on simulated data intrinsic limit on the ability of every method to capture the imis used to establish the methods' limits of reliability. Their performance portant spectral features. In the following, we describe algorithms with respect to peak identification and quantification of nuclear magmore powerful than the usual FFT, in the sense that they come netic resonance parameters are then assayed on real data. Results closer to the intrinsic limit than does FFT. of application of the methods to 1 H-MRS signals from cultured cells are discussed and compared with those deriving from application of In the past, we devoted our attention to some of the most fast Fourier transform. ᭧ 1997 John Wiley & Sons, Inc. Int J Imaging Syst common autoregressive (AR) methods (such as the one known