Spectroscopic proton image data recorded with the aid of a gradient- echo spectroscopic imaging pulse sequence are reported. A postdetection processing method is suggested which permits correction of artifacts due to inhomogeneity, susceptibility, and chemical-shift resonance offsets. That is, apart from the spectral information available in this way, better spatial resolutions can be achieved. The method is demonstrated by resonance-offset corrected images of the human finger in vivo. Moreover, resonance-line selective and spectroscopically resolved diffusion-weighted images and diffusivity maps rendered with the aid of the same postdetection procedure are shown.
Bibliographical noteFunding Information:
Acknowledgements-Financial support by the Deutsche Forschungs-gemeinschaft and the Alexander van Humboldt Foundation is gratefully acknowledged. J.W. is indebted to the Institute of Measurement Science, Slovak Academy of Sciences, for continuous support.
Copyright 2018 Elsevier B.V., All rights reserved.
- Chemical shift artifact
- Diffusivity mapping
- Human finger
- NMR microscopy
- Spectroscopic imaging