Abstract #0795
PFG Filter for Oscillating Gradient Diffusion Measurements
Bibek Dhital 1 , Jochen Leupold 2 , and Valerij G. Kiselev 2
1
German Cancer Consortium (DKTK), Heidelberg,
Baden, Germany,
2
Department
of Diagnostic Radiology, University Medical Center
Freiburg, Freiburg, Baden Wrttemberg, Germany
In this abstract we discuss application of PFG at long
diffusion times and small q to discriminate between and
hindered and restricted diffusion pools. We implement
this as a preparation module to oscillating gradient
diffusion weighted sequence. Since both the PFG and
oscillating gradient waveforms are sensitive to
diffusive motion, proper application of such
PFG-filter requires that no cross terms exist between
the two. Two sets of oscillating gradient diffusion
weighted measurements on a celery stalk, one with the
PFG-filter and other without. Our results confirm that
in voxels containing heterogeneous regions, the PFG-filter
can resolve the two compartments.
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