Abstract
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 language | English |
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Title of host publication | Clinical Functional MRI - Presurgical Functional Neuroimaging |
Editors | C. Stippich |
Place of Publication | Berlin Heidelberg |
Publisher | Springer |
Pages | 5-51 |
ISBN (Print) | 978-3-540-24469-1 |
DOIs | |
Publication status | Published - 1 Jan 2007 |