Abstract #1833
Mapping of Relative Vessel Sizes in fMRI With SAGE
Allen T Newton 1,2 , Jack T Skinner 1,2 , and C Chad Quarles 1,3
1
Radiology and Radiological Sciences,
Vanderbilt University, Nashville, TN, United States,
2
Institute
of Imaging Science, Vanderbilt University, Nashville,
TN, United States,
3
Institute of Imaging
Sciences, Vanderbilt University, Nashville, TN, United
States
While spin echo measurements have been long established
as being more sensitive to activity in capillary beds,
gradient echo acquisitions have remained popular due in
large part to their improved sensitivity. Here, we
present a method for using simultaneous spin echo and
gradient echo acquisitions to gain insight to the size
of vessels underlying traditional gradient echo
eperiments. This is superior to traditional spin echo
studies in that it allows you to maintain the
sensitivity associated with gradient echo images while
providing a more continuous metric that is sensitive to
relative vessel size.
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