Weighted regularization in electrical impedance tomography with applications to acute cerebral stroke

We apply electrical impedance tomography to detect and localize brain impedance changes associated with stroke. Forward solutions are computed using the finite-element method in two dimensions. We assume that baseline conductivity values are known for the major head tissues, and focus on changes in...

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Veröffentlicht in:	IEEE transactions on medical imaging 2002-06, Vol.21 (6), p.629-637
Hauptverfasser:	Clay, M.T., Ferree, T.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acute Disease Brain Brain Ischemia - complications Brain Ischemia - diagnosis Cerebral Hemorrhage - complications Cerebral Hemorrhage - diagnosis Computer Simulation Conductivity Electric Impedance Electrocardiography Electroencephalography Finite element method Head - physiopathology Hemorrhaging Humans Image Enhancement - methods Image quality Impedance measurement Inverse problems Magnetic resonance imaging Magnetoencephalography Medical imaging Models, Neurological Monitoring Reproducibility of Results Sensitivity and Specificity Stochastic Processes Stroke - diagnosis Stroke - etiology Studies Surface impedance Tissue Tomography Tomography - methods
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