Functional Brain Imaging |
From inside the book
Results 1-3 of 9
Page 35
... distal to the axon hillock . The region of the axonal initial segment is particularly dense in voltage - gated sodium channels , and it has the lowest depolarization threshold . Action potentials are generated if , and only if , the ...
... distal to the axon hillock . The region of the axonal initial segment is particularly dense in voltage - gated sodium channels , and it has the lowest depolarization threshold . Action potentials are generated if , and only if , the ...
Page 226
... distal to a partly obstructed artery caused by local vasodilation ( and hence increased blood volume ) in the affected area . 30 MCi Ic - 99M HMPAO 9.8 88 Fig . HMPAO injected intravenously during the occlusion . The SPECT imaging is ...
... distal to a partly obstructed artery caused by local vasodilation ( and hence increased blood volume ) in the affected area . 30 MCi Ic - 99M HMPAO 9.8 88 Fig . HMPAO injected intravenously during the occlusion . The SPECT imaging is ...
Page 227
... distal to arterial obstruc- tion has already caused compensatory vasodilation and increased rCBV in the affected area . Little addi- tional dilation can occur in the ischemic area , which has already done all it can to keep tissues ...
... distal to arterial obstruc- tion has already caused compensatory vasodilation and increased rCBV in the affected area . Little addi- tional dilation can occur in the ischemic area , which has already done all it can to keep tissues ...
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 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