Reconstruction of NMR Spectra from Truncated Data with the Fast Pade Transform

Sun Kim¹, Glen Morrell²

MR proton spectroscopy with Fourier reconstruction requires long acquisition windows to allow sufficient spectral resolution to discriminate between metabolites of interest. The Fast Pade Transform (FPT) can be used to reconstruct NMR spectra from dramatically shortened acquisitions with no loss of spectral resolution. We investigate the use of the FPT for MR spectroscopy. We show that spectra reconstructed by FPT from repeated acquisitions of a short truncated FID have superior noise characteristics than spectra reconstructed from conventional long FID acquisitions by Fourier transform, given the same total acquisition time.