Functional Brain Imaging |
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Page 173
When the gradient is removed, the spins go back to all moving at the same rate
but are now out of phase by an amount depending on the strength and duration
of the gradient that each spin experienced. Realistically, the spin speed reflects ...
When the gradient is removed, the spins go back to all moving at the same rate
but are now out of phase by an amount depending on the strength and duration
of the gradient that each spin experienced. Realistically, the spin speed reflects ...
Page 175
Movement of a spin in a magnetic field gradient results in the accumulation of a
phase shift relative to the phase of stationary spins. The amount of phase
accumulation depends on the direction and velocity of the spins relative to the
applied ...
Movement of a spin in a magnetic field gradient results in the accumulation of a
phase shift relative to the phase of stationary spins. The amount of phase
accumulation depends on the direction and velocity of the spins relative to the
applied ...
Page 184
(scheme ll) |W U aFast Spin-Echo Sequence G read G phase a WTV (scheme I)
Echo amplitude C Echo amplitude k phase encoding k phase encoding Fourier
Space Filling Schemes Fig. 4-69. A fast spin echo sequence and two potential ...
(scheme ll) |W U aFast Spin-Echo Sequence G read G phase a WTV (scheme I)
Echo amplitude C Echo amplitude k phase encoding k phase encoding Fourier
Space Filling Schemes Fig. 4-69. A fast spin echo sequence and two potential ...
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Contents
Introduction to Brain Imaging | 1 |
Computerized Axial Tomography | 97 |
Magnetic Resonance Imaging | 145 |
Copyright | |
6 other sections not shown
Other editions - View all
Functional Brain Imaging William W. Orrison,Jeffrey Lewine,John Sanders,Michael F. Hartshorne Limited preview - 2017 |
Common terms and phrases
abnormal activity arterial auditory Axial axon basal ganglia blood volume capillary cells central central sulcus cerebral blood flow cerebral cortex clinical coil components computed computed tomography contrast agent cortex cortical decreased demonstrating detection diffusion dipole disease effects encoding epilepsy extracellular field strength FMRI focal frequency frontal functional Gd-DTPA glucose gradient hemorrhage HMPAO infarction inhomogeneous injection lesions Magn Reson magnetic field magnetic resonance imaging mapping measured membrane metabolism metabolite methods motor msec neoplasms nerve nervous system neural neuromagnetic neurons normal Nucl nuclei oxygen paramagnetic patients pattern peak perfusion phase positron emission tomography processing projections proton pulse rCBF receptors relaxation scan seizures sensitivity sequences signal changes signal intensity slice SMRM Annual Meeting somatosensory spatial SPECT spectra spikes spin echo stimulation studies T2-weighted techniques temporal lobe thalamus tion tissue tumors uptake visual voxel white matter
Bibliographic information
| Title | Functional Brain Imaging |
| Author | William W. Orrison |
| Editor | William W. Orrison |
| Edition | illustrated |
| Publisher | Mosby, 1995 |
| Original from | the University of Michigan |
| Digitized | 5 Aug 2008 |
| ISBN | 0815165099, 9780815165095 |
| Length | 479 pages |
| Subjects | › Medical / Radiology, Radiotherapy & Nuclear Medicine |
| Export Citation | BiBTeX EndNote RefMan |