Functional Brain Imaging |
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Page 398
... spikes . In some patients , it is clear that multiple extended regions contribute to a spike , so a simple dipole model is inappropriate . However , some spikes are well characterized by single dipoles , and the relevant epileptic zone ...
... spikes . In some patients , it is clear that multiple extended regions contribute to a spike , so a simple dipole model is inappropriate . However , some spikes are well characterized by single dipoles , and the relevant epileptic zone ...
Page 400
... spikes were recorded over the right hemisphere ( Fig . 9-46 ) . All the spikes localized along the anterior bank of the central sulcus . Most of the activity was at an inferior location , just anterior to the site where tactile ...
... spikes were recorded over the right hemisphere ( Fig . 9-46 ) . All the spikes localized along the anterior bank of the central sulcus . Most of the activity was at an inferior location , just anterior to the site where tactile ...
Page 401
... spikes ( triangles ) of a patient with rolandic epilepsy . The orientations of the sources were such that EEG showed the spikes to be maximally positive at T3 . F Fig . 9-47 . Magnetic source localization images showing sources of ...
... spikes ( triangles ) of a patient with rolandic epilepsy . The orientations of the sources were such that EEG showed the spikes to be maximally positive at T3 . F Fig . 9-47 . Magnetic source localization images showing sources of ...
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