Functional Brain Imaging |
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Page 135
... result in fetal ischemic change identifiable on MR as periventricular increased signal on T2 - weighted im- ages.94 CNS infections involving the fetus are unique in that they result in damage to the developing brain . The age of the ...
... result in fetal ischemic change identifiable on MR as periventricular increased signal on T2 - weighted im- ages.94 CNS infections involving the fetus are unique in that they result in damage to the developing brain . The age of the ...
Page 141
... result of primary AIDS virus infection ( Fig . 3-56 ) . Acute disseminated encephalomyelitis ( ADE ) may present within 1 week after exposure to varicella or influenza . MR will again demonstrate focal abnormalities in the white matter ...
... result of primary AIDS virus infection ( Fig . 3-56 ) . Acute disseminated encephalomyelitis ( ADE ) may present within 1 week after exposure to varicella or influenza . MR will again demonstrate focal abnormalities in the white matter ...
Page 175
... Result Fig . 4-55 . Motion of spins in the presence of a gradient results in the accumulation of a phase shift relative to that of stationary spins . cancellation and reduction of the measured signal ( Fig . 4-56 ) . Gradient waveform ...
... Result Fig . 4-55 . Motion of spins in the presence of a gradient results in the accumulation of a phase shift relative to that of stationary spins . cancellation and reduction of the measured signal ( Fig . 4-56 ) . Gradient waveform ...
Contents
Introduction to Brain Imaging | 1 |
Computerized Axial Tomography | 97 |
Magnetic Resonance Imaging | 145 |
Copyright | |
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Functional Brain Imaging William W. Orrison,Jeffrey Lewine,John Sanders,Michael F. Hartshorne Limited preview - 2017 |
Common terms and phrases
abnormal activity ALFMA arterial auditory Axial axon basal ganglia brain capillary cells central central sulcus cerebral blood flow chemical shift clinical coil computed computed tomography contrast agent cortex cortical decreased demonstrating detection diffusion dipole disease effects encoding epilepsy extracellular field strength FMRI focal frequency functional Gd-DTPA glucose gradient HMPAO infarction inhomogeneous injection lesions Magn Reson magnetic field magnetic resonance imaging mapping measured membrane metabolism methods motor msec neoplasms nerve nervous system neural neuromagnetic neurons normal Nucl nuclei oxygen paramagnetic patients pattern peak perfusion phase positron emission tomography posterior processing projections proton pulse Radon transform 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