Abstract #3027
Using oscillating gradient spin-echo sequences to infer micron-sized bead and pore radii
Sheryl L Herrera 1 , Morgan E Mercredi 1 , Trevor J Vincent 2,3 , Richard Buist 4 , and Melanie Martin 2,5
1
Physics & Astronomy, University of Mantioba,
Winnipeg, Manitoba, Canada,
2
Physics,
University of Winnipeg, Winnipeg, Manitoba, Canada,
3
Physics,
University of Toronto, Toronto, Ontario, Canada,
4
Radiology,
University of Mantioba, Winnipeg, Manitoba, Canada,
5
Physics
& Astronomy, Radiology, University of Mantioba,
Winnipeg, Manitoba, Canada
There is an increasing drive to use diffusion
spectroscopy to infer the sizes of structures in samples
yet pulsed gradient spin echo limits the obtainable
sizes. This work provides experimental evidence for
using oscillating gradient spin echo sequences to infer
the sizes of small structures. Structures of radius 0.6
0.5 m were inferred using this method which is 2-10
times smaller than structures measured with AxCaliber
and more accurate than previous measurements. This work
lays the foundation for inferring the size of submicron
structures, such as axon diameters in samples using MRI.
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