Functional Brain Imaging |
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Page 152
... longitudinal magneti- zation . " Even though a small part of the precessing magnetization of each individual nucleus ... longitudinal ( Fig . 4-11 ) , are both parts of the net magnetization Longitudinal magnetization component X ...
... longitudinal magneti- zation . " Even though a small part of the precessing magnetization of each individual nucleus ... longitudinal ( Fig . 4-11 ) , are both parts of the net magnetization Longitudinal magnetization component X ...
Page 159
... longitudinal magnetization available at the time of the excitation 90 - degree pulse . The time interval between repeated 90 - degree pulses , TR , determines how much recovery time is available between each pulse . Fig . 4-34 ...
... longitudinal magnetization available at the time of the excitation 90 - degree pulse . The time interval between repeated 90 - degree pulses , TR , determines how much recovery time is available between each pulse . Fig . 4-34 ...
Page 160
... Longitudinal magnetization ( 1 - e - 1 / 500 ) Longitudinal magnetization 0- Water # 3 # 17 # 2 Time 1000 2000 90 ... Longitudinal magnetization used Z Longitudinal magnetization used N Longitudinal magnetization 160 FUNCTIONAL BRAIN IMAGING.
... Longitudinal magnetization ( 1 - e - 1 / 500 ) Longitudinal magnetization 0- Water # 3 # 17 # 2 Time 1000 2000 90 ... Longitudinal magnetization used Z Longitudinal magnetization used N Longitudinal magnetization 160 FUNCTIONAL BRAIN IMAGING.
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