Functional Brain Imaging |
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Page 127
... T2 - weighted MR ( TR 2500 , TE 90 ) demonstrating decreased signal intensity in acute hemorrhage ( compare to A ) . B A Fig . 3-40 . A , Axial CT. A B hypointense during the acute and early subacute period , becoming entirely ...
... T2 - weighted MR ( TR 2500 , TE 90 ) demonstrating decreased signal intensity in acute hemorrhage ( compare to A ) . B A Fig . 3-40 . A , Axial CT. A B hypointense during the acute and early subacute period , becoming entirely ...
Page 135
... T2 - weighted images . In term infants , the " watershed areas " are located in two primary regions : between the middle and poste- rior cerebral arteries as is traditionally identified in adults , and between the anterior and middle ...
... T2 - weighted images . In term infants , the " watershed areas " are located in two primary regions : between the middle and poste- rior cerebral arteries as is traditionally identified in adults , and between the anterior and middle ...
Page 184
... T2 decay results in image filtering , particularly in the phase - encode direction . It is possible to use the first echoes ( having less T2 weighting ) to form a T1 - weighted image and use later echoes to form a T2 - weighted image ...
... T2 decay results in image filtering , particularly in the phase - encode direction . It is possible to use the first echoes ( having less T2 weighting ) to form a T1 - weighted image and use later echoes to form a T2 - weighted image ...
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 |
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