Functional Brain Imaging |
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Page 162
... echo time ( TE ) can be varied to highlight T2 relaxation differences between tissues . Fig . 4-29 . While the spin echo focuses the dephasing from magnetic field inhomogeneity , it does not refocus dephasing from spin - spin ( T2 ) ...
... echo time ( TE ) can be varied to highlight T2 relaxation differences between tissues . Fig . 4-29 . While the spin echo focuses the dephasing from magnetic field inhomogeneity , it does not refocus dephasing from spin - spin ( T2 ) ...
Page 178
... Spin echo . Spin echo sequences are still the most commonly used sequences and serve as a reference to describe the image weighting and time requirements of other sequences . As we have seen , spin echo imaging techniques directly ...
... Spin echo . Spin echo sequences are still the most commonly used sequences and serve as a reference to describe the image weighting and time requirements of other sequences . As we have seen , spin echo imaging techniques directly ...
Page 186
... spin- echoes , J Phys C Solid State Phys 10 : L55 , 1977 . 28. Mansfield P : Real - time echo - planar imaging by NMR , Br Med Bull 40 : 187-190 , 1984 . 29. Ordidge R , Coxon A , Howseman A et al : Snapshot head imaging at 0.5 T using the ...
... spin- echoes , J Phys C Solid State Phys 10 : L55 , 1977 . 28. Mansfield P : Real - time echo - planar imaging by NMR , Br Med Bull 40 : 187-190 , 1984 . 29. Ordidge R , Coxon A , Howseman A et al : Snapshot head imaging at 0.5 T using the ...
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 |
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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