Software for reconstruction of non-uniformly sampled NMR data.
Related Articles Software for reconstruction of non-uniformly sampled NMR data.
Magn Reson Chem. 2020 Jun 09;:
Authors: Pedersen CP, Prestel A, Teilum K
Abstract
Non-uniform sampling (NUS) of multidimensional NMR experiments is a powerful tool to obtain high resolution spectra with less instrument time. With NUS only a subset of the points needed for conventional Fourier transformation is recorded and sophisticated algorithms are needed to reconstruct the missing data points. During the last decade several software packages implementing the reconstruction algorithms have emerged and been refined and now result in spectra of almost similar quality as spectra from conventionally recorded and processed data. However, from the number of literature references to the reconstruction methods many more multi-dimensional NMR spectra could presumably be recorded with NUS. To help researchers considering starting using NUS for their NMR experiments we here review 13 different reconstruction methods found in five software packages (CambridgeCS, hmsIST, MddNMR, NESTA-NMR and SMILE). We have compared how the methods run with the provided example scripts for reconstructing a non-uniform sampled three-dimensional 15 N-NOESY-HSQC at sampling densities from 5% to 50%. Overall, the spectra are all of similar quality above 20% sampling density. Thus, without any particular knowledge about the details of the reconstruction algorithms significant reduction in the experiment time can be achieved. Below 20% sampling density, the intensities of particular weak peaks start being affected, while MddNMR's IST with virtual echo and the SMILE algorithms still reproduced the spectra with the highest accuracy of peak intensities.
PMID: 32516838 [PubMed - as supplied by publisher]
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