Improvement of Sensitivity and Interrater Reliability to Detect Acute Stroke by Dynamic Perfusion Computed Tomography and Computed Tomography Angiography

2006 ◽  
Vol 30 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Johann Scharf ◽  
Marc A Brockmann ◽  
Michael Daffertshofer ◽  
Michael Diepers ◽  
Eva Neumaier-Probst ◽  
...  
2003 ◽  
pp. 165-178
Author(s):  
George Hunter ◽  
Leena M. Hamberg ◽  
Michael H. Lev ◽  
Ramon Gilberto Gonzales

2015 ◽  
Vol 49 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Jernej Avsenik ◽  
Sotirios Bisdas ◽  
Katarina Surlan Popovic

Abstract Background. The blood-brain barrier represents the selective diffusion barrier at the level of the cerebral microvascular endothelium. Other functions of blood-brain barrier include transport, signaling and osmoregulation. Endothelial cells interact with surrounding astrocytes, pericytes and neurons. These interactions are crucial to the development, structural integrity and function of the cerebral microvascular endothelium. Dysfunctional blood-brain barrier has been associated with pathologies such as acute stroke, tumors, inflammatory and neurodegenerative diseases. Conclusions. Blood-brain barrier permeability can be evaluated in vivo by perfusion computed tomography - an efficient diagnostic method that involves the sequential acquisition of tomographic images during the intravenous administration of iodinated contrast material. The major clinical applications of perfusion computed tomography are in acute stroke and in brain tumor imaging.


Author(s):  
Michael H. Lev ◽  
George J. Hunter ◽  
Leena M. Hamberg ◽  
R. Gilberto González

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