OBJECTIVE: Developing and evaluating an improved sampling pattern to track the dynamics of labeled substances in plants using indirect (13)C chemical shift imaging. MATERIALS AND METHODS: An algorithm to split an acquisition weighted sampling pattern into several undersampled sub-images is presented. The sampling patterns are used in CSI moving phantom experiments as well as in in vivo POCE-CSI experiments on barley stem and grain. Reconstruction is performed traditionally or by compressed sensing. RESULTS: The moving phantom experiments show that the sampling pattern can reduce motion artifacts at the cost of an increased overall noise. The in vivo experiments demonstrate the feasibility of extracting a time series from a single imaging experiment. CONCLUSION: The sampling pattern is suitable for tracking the uptake of label substances into plant material. The use of compressed sensing allows an increased spatial and temporal resolution.
OBJECTIVE: Developing and evaluating an improved sampling pattern to track the dynamics of labeled substances in plants using indirect (13)C chemical shift imaging. MATERIALS AND METHODS: An algorithm to split an acquisition weighted sampling pattern into several undersampled sub-images is presented. The sampling patterns are used in CSI moving phantom experiments as well as in in vivo POCE-CSI experiments on barley stem and grain. Reconstruction is performed traditionally or by compressed sensing. RESULTS: The moving phantom experiments show that the sampling pattern can reduce motion artifacts at the cost of an increased overall noise. The in vivo experiments demonstrate the feasibility of extracting a time series from a single imaging experiment. CONCLUSION: The sampling pattern is suitable for tracking the uptake of label substances into plant material. The use of compressed sensing allows an increased spatial and temporal resolution.
Authors: Kang Wang; Reed F Busse; James H Holmes; Philip J Beatty; Jean H Brittain; Christopher J Francois; Scott B Reeder; Jiang Du; Frank R Korosec Journal: Magn Reson Med Date: 2011-02-28 Impact factor: 4.668
Authors: Alex M J Hudson; Walter Köckenberger; Michael Heidenreich; Narayanan Chandrakumar; Rainer Kimmich; Richard Bowtell Journal: J Magn Reson Date: 2002-03 Impact factor: 2.229