3‐dimensional functional imaging of human brain using echo‐shifted FLASH MRI

Jeff H. Duyn, Venhatha S. Mattay, Roy H. Sexton, Geoffrey S. Sobering, Fernando A. Barrios, Guoying Liu, Joseph A. Frank, Daniel R. Weinberger, Chrit T.W. Moonen

Research output: Contribution to journalArticlepeer-review

Abstract

A 3‐dimensional MRI method has been developed for functional mapping of the human brain, based on blood oxygenation level dependent (BOLD) contrast mechanisms. The method uses recently introduced principles of echo‐shifted FLASH to acquire a single 3D data set in 20 s. The technique was tested on a conventional 1.5 Tesla clinical scanner with a standard head coil using visual stimulation with a 8 Hz flashing white light, or a varying checkerboard pattern. Areas of increased signal intensity were identified in the visual cortex, consistent with the known functional organization.

Original languageEnglish (US)
Pages (from-to)150-155
Number of pages6
JournalMagnetic resonance in medicine
Volume32
Issue number1
DOIs
StatePublished - Jul 1994

Keywords

  • MR, rapid imaging
  • brain, MR
  • brain, function
  • functional MRI

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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