fMRI across high temporal scales
Burak Akin1
1Dept. of Radiology, Medical Physics, Medical Center – University of Freiburg, Germany
Synopsis
With the
advent of fast fMRI sequences, whole brain fMRI data can be acquired in few
hundreds of milliseconds. Although fast acquisitions are not necessary to
sample the low frequency (<0.1Hz) fluctuations associated with most of the
BOLD activity. Approaches with increased temporal resolution have some advantages
like allowing dynamic connectivity analysis and potential to reveal transient
changes of the brain function. This lecture will cover a short overview of
available fast fMRI techniques, their advantages over widely used EPI sequence
and finally potential applications in brain imaging.
Target Audience
Neuroscientists
and medical doctors interested in using increased temporal resolution to study
brain function also engineers and physicist interested in the applications of
fast fMRI.Outline
-Ways to get faster, an
overview of available fast fMRI sequences
-Historical development of MR
Encephalography (MREG)
-Motivations to increase
temporal resolution in fMRI acquisitions.
-MREG in comparison with EPI,
early detection of resting state networks
-Applications of fast fMRI:
dynamic connectivity, variance of functional connectivity (vFC) mapping, lag thread
analysis, pulsations of the glymphatic mechanismOutcomes
Attendees will get familiar
with fast fMRI data and its advantages and limitations also potential
applications in brain imaging.Acknowledgements
No acknowledgement found.References
No reference found.
Proc. Intl. Soc. Mag. Reson. Med. 28 (2020)