Functional Brain Imaging |
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Page 193
... rCBF while rCMRglc remains depressed . This phenomenon is referred to as luxury perfusion . After a month , rCBF and rCMRglc are at a level lower than the normal contralateral brain ( and presumably lower than before the infarct ) but ...
... rCBF while rCMRglc remains depressed . This phenomenon is referred to as luxury perfusion . After a month , rCBF and rCMRglc are at a level lower than the normal contralateral brain ( and presumably lower than before the infarct ) but ...
Page 224
... rCBF measurements . Semiquantitative techniques express rCBF as a ratio of a lesion to similar normal brain ( L / N ) . As established by 33Xe SPECT studies , the rCBF threshold for CNS symptoms of ischemia is in the range of 33 to 36 ...
... rCBF measurements . Semiquantitative techniques express rCBF as a ratio of a lesion to similar normal brain ( L / N ) . As established by 33Xe SPECT studies , the rCBF threshold for CNS symptoms of ischemia is in the range of 33 to 36 ...
Page 230
... rCBF and SPECT results may in part be related to variations in populations , diagnoses , medications , and duration 176 of disease.174,175 Temporal lobe rCBF abnormalities have also been reported in schizophrenics . A ten- dency for ...
... rCBF and SPECT results may in part be related to variations in populations , diagnoses , medications , and duration 176 of disease.174,175 Temporal lobe rCBF abnormalities have also been reported in schizophrenics . A ten- dency for ...
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