Functional Brain Imaging |
From inside the book
Results 1-3 of 82
Page 179
... less than T2 * , the FISP signal is a function of the ratio of T1 to T2 * , with T2 * weighting increasing with TE and T1 weighting increasing with decreasing flip angle ( less starting transverse magnetization ) . Fast Imaging Methods ...
... less than T2 * , the FISP signal is a function of the ratio of T1 to T2 * , with T2 * weighting increasing with TE and T1 weighting increasing with decreasing flip angle ( less starting transverse magnetization ) . Fast Imaging Methods ...
Page 188
... less than would be anticipated from the large increases in blood flow and glucose uptake that are known to occur with cerebral activation . These types of complex neuronal and metabolic interactions make up the core of the brain - code ...
... less than would be anticipated from the large increases in blood flow and glucose uptake that are known to occur with cerebral activation . These types of complex neuronal and metabolic interactions make up the core of the brain - code ...
Page 385
... less than 1 % when the distance changes an equivalent 2 cm from 1002 to 1004 centimeters . Therefore , by measuring the spatial gradient of the field rather than the overall magnitude of the field , it is possible to emphasize signals ...
... less than 1 % when the distance changes an equivalent 2 cm from 1002 to 1004 centimeters . Therefore , by measuring the spatial gradient of the field rather than the overall magnitude of the field , it is possible to emphasize signals ...
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