Localization of brain activity using functional magnetic resonance imaging

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic


Magnetic resonance imaging (mri) is based on magnetic excitation of body tissue and the reception of returned electromagnetic signals from the body. Excitation induces phase-locked precession of protons with a frequency proportional to the strength of the surrounding magnetic field as described by the larmor equation. This fact can be exploited for spatial encoding by applying magnetic field gradients along spatial dimensions on top of the strong static magnetic field of the scanner. The obtained frequency-encoded information for each slice is accumulated in two-dimensional κ space which can be transformed into image space by fourier analysis.keywordsfmri dataecho planar imaginganterior commissuremagnetic resonance image signalradio frequency pulsethese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Original languageEnglish
Title of host publicationClinical Functional MRI - Presurgical Functional Neuroimaging
EditorsC. Stippich
Place of PublicationBerlin Heidelberg
ISBN (Print)978-3-540-24469-1
Publication statusPublished - 1 Jan 2007

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