scholarly journals CT scanning protocol in washin/washout method to reduce the effect of xenoninduced flow activation on xenon-enhanced computed tomography calculations: cerebral blood flow and partition coefficient

2015 ◽  
Vol 04 (02) ◽  
Author(s):  
Shigeru Sase Hideharu Nakano
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Partition Coefficient ◽  
Ct Scanning ◽  
Scanning Protocol ◽  
Flow Activation ◽  
Enhanced Computed Tomography

scholarly journals Effect of Xenon-Induced Flow Activation on Xenon-Enhanced Computed Tomography Cerebral Blood Flow Calculations

1998 ◽  
Vol 18 (11) ◽  
pp. 1192-1195 ◽  
Author(s):  
Walter D. Obrist ◽  
Zihong Zhang ◽  
Howard Yonas
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Blood Velocity ◽  
Time Varying ◽  
Standard Analysis ◽  
Stable Xenon ◽  
Flow Activation ◽  
Induced Flow ◽  
Minimal Bias ◽  
Enhanced Computed Tomography

Computer simulations of stable xenon (sXe) uptake curves were used to evaluate the effect of xenon-induced flow activation on CBF calculations by xenon-enhanced computed tomography, Estimates of flow activation were based on repeated transcranial Doppler measurements of blood velocity during 4,5 minutes of sXe inhalation, The synthetic curves were generated from a generalized Kety equation that included time-varying blood flow activation, In contrast to the peak 35% increase in blood flow velocity during sXe inhalation, a standard analysis of the flow-varying synthetic curves revealed only minor 3% to 5% increases in calculated CBF. It is concluded that brief xenon inhalations can provide blood flow estimates that contain minimal bias from activation.

Regional Cerebral Blood Flow Measurements Using Stable Xenon Enhanced Computed Tomography

1984 ◽  
Vol 8 (4) ◽  
pp. 619-630 ◽  
Author(s):  
Pulla R. S. Kishore ◽  
Gopala U. Rao ◽  
Richard E. Fernandez ◽  
Richard L. Keenan ◽  
Ganesh D. Arora ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Regional Cerebral Blood Flow ◽  
Regional Cerebral Blood ◽  
Flow Measurements ◽  
Stable Xenon ◽  
Blood Flow Measurements ◽  
Enhanced Computed Tomography

scholarly journals Cerebral blood flow measured by xenon-enhanced computed tomography as a guide to management of patients with cerebrovascular disease

1986 ◽  
Vol 3 (2) ◽  
pp. 298-304 ◽  
Author(s):  
Marshall W. Webster ◽  
David L. Steed ◽  
Howard Yonas ◽  
Richard E. Latchaw ◽  
Sidney K. Wolfson ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Cerebrovascular Disease ◽  
Enhanced Computed Tomography

Assessment of Cerebral Blood Flow Reserve with Xenon-Enhanced Computed Tomography in Ischemic Stroke Patients

2003 ◽  
Vol 16 (5) ◽  
pp. 839-842
Author(s):  
M. Sesay ◽  
X. Barreau ◽  
A. Chirita ◽  
J. Berge ◽  
P. Menegon ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Ischemic Stroke ◽  
Stroke Patients ◽  
Flow Reserve ◽  
Enhanced Computed Tomography
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