Functional Brain Imaging |
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Page 430
... chemical shift range of most proton metabolites is contained within a frequency range of approximately 380 Hz at 1.5 T. Those metabolite signals are spread out over approximately 1020 Hz at 4.0 T. These effects can also be observed in ...
... chemical shift range of most proton metabolites is contained within a frequency range of approximately 380 Hz at 1.5 T. Those metabolite signals are spread out over approximately 1020 Hz at 4.0 T. These effects can also be observed in ...
Page 436
... Chemical Shift ( ppm ) Fig . 10-20 . Correction for eddy current - induced distortions leads to narrower peaks and improved peak profiles . avoid broadening the spectral peaks that result from computing a magnitude spectrum . The ...
... Chemical Shift ( ppm ) Fig . 10-20 . Correction for eddy current - induced distortions leads to narrower peaks and improved peak profiles . avoid broadening the spectral peaks that result from computing a magnitude spectrum . The ...
Page 463
... Chemical shift imaging with phase - encoding RF pulses , Magn Reson Med 25 : 289-298 , 1992 . 58. Dixon WT : Chemical shift imaging . In Budinger TF , Margulis AR , editors : Medical magnetic resonance imaging and spec- troscopy : a ...
... Chemical shift imaging with phase - encoding RF pulses , Magn Reson Med 25 : 289-298 , 1992 . 58. Dixon WT : Chemical shift imaging . In Budinger TF , Margulis AR , editors : Medical magnetic resonance imaging and spec- troscopy : a ...
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