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 mechanism

Outcomes

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)