We present a basic experiment by which the evolution of the displacement probability density (propagator) of static or flowing fluid in N successive time intervals is obtained by single labeling, coupled with multiple rephasing events during the course of a pulsed field-gradient sequence. We term th
Motion rephasing in gradient-localized spectroscopy
β Scribed by M.L Gyngell; J Frahm; K.D Merboldt; W Hanicke; H Bruhn
- Publisher
- Elsevier Science
- Year
- 1988
- Weight
- 210 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
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We thank K.-H. Spohn for discussions and B. Striebel, J. Ankele, and J. Wiringer for assistance in the course of the experiments. This work was supported by the Deutsche Forschungsgemeinschaft.
The availability of shielded gradients facilitates accurate single-voxel spectroscopy. Exact localization (90-99%) of volumes as small as 2 x 2 x 2 mm is demonstrated using a modified stimulated echo sequence. Strong gradient pulses (up to 200 mT/m) are employed to clear the stimulated echo of unwan
## Abstract A gradient scheme is presented which may be used for STEAM or ISIS localization. One application of the scheme is to perform singleβshot STEAM shimming prior to data acquisition with STEAM and ISIS, using identical gradient amplitudes and durations. Using conventional STEAM to shim for