Abstract #2641
Recipes of Diffusion Measurements with Oscillating Gradients
Valerij G. Kiselev 1 and Bibek Dhital 1,2
1
Department of Radiology, Medical Physics,
University Medical Center Freiburg, Freiburg, Germany,
2
German
Cancer Consortium (DKTK), Heidelberg, Germany
We discuss two major challenges of diffusion
measurements with oscillating gradients: (i) achieving
the highest frequency on preclinical scanners and (ii)
performing measurements on human scanners. In order to
respond to (i), we propose a ramp that does not
compromise the maximal achievable frequency below the
hardware limits and show explicitly the parameter range
for which this extension is crucial. Other important
ingredients of diffusion measurements with oscillating
gradient are the relative phase of two gradient trains
in the spin echo measurements, fast ramps for
low-frequency measurements in human scanners and the
optimal total gradient duration.
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