cerebral blood volume
Nonlinear estimation of BOLD signals with the aid of cerebral blood volume imaging
... and blood oxygen level dependent (BOLD) responses by Buxton et ...in cerebral blood volume (CBV) v, cerebral blood flow f, and ...
11
MR Cerebral Blood Volume Maps Correlated with Vascular Endothelial Growth Factor Expression and Tumor Grade in Nonenhancing Gliomas
... All dynamic MR images were transferred via Ethernet to a workstation (Sun Ultra 10; Sun Microsystems, Santa Clara, CA) and evaluated with ADW 4.0 software (GE Medical Sys- tems, Milwaukee, WI). Knopp et al (12) ...
7
Measurement of cerebral blood volume with subtraction three dimensional functional CT
... PURPOSE: To implement a three-dimensional subtraction functional CT technique to permit rapid quantitative mapping of regional cerebral blood volume (CBV). METHODS: The 3-D functional CT technique ...
9
Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy: Decrease in Regional Cerebral Blood Volume in Hyperintense Subcortical Lesions Inversely Correlates with Disability and Cognitive Performance
... of cerebral blood volume based on the indicator dilution theory are valid only if the indicator remains intravascular in the bolus ...intact blood- brain barrier. As no quantitative ...
7
Theoretical Basis of Hemodynamic MR Imaging Techniques to Measure Cerebral Blood Volume, Cerebral Blood Flow, and Permeability
... of cerebral hemodynamics has a long history, stretching back to the fundamental recognition by Wepfer in the 1600s that ischemic stroke was a vascular ...high cerebral blood flow (CBF) (50 mL ...
9
Effects of chronic hypertension and acute cerebral ischemia on blood-brain barrier permeability, brain water content, and cerebral blood volume using MRI
... When blood pressure rises above the upper limit, blood flow increases rapidly with increased CPP and could potentially cause severe overstretching or rupture of cerebral blood vessels, ...
154
Elevated Cerebral Blood Volume Contributes to Increased FLAIR Signal in the Cerebral Sulci of Propofol Sedated Children
... A retrospective search of our institutional data base, conducted with institutional review board approval and waiver of consent, yielded 198 children with brain tumors without leptomeningeal metastasis who had pre- and ...
6
Computed tomography perfusion measurements for definition of lesions in early acute stroke
... (cerebral blood volume) map show the competency of autoregulation mechanisms and show different results in penumbra lesions ...brain volume increase is needed for sufficient brain blood ...
5
Model estimation of cerebral hemodynamics between blood flow and volume changes: a data-based modelling approach
... cerebral blood volume ...the blood oxygen level dependent (BOLD) signals are recorded, the understanding and accurate modelling of the hemodynamic relationship between CBF and CBV becomes ...
21
Measurement of Cerebral Hemodynamics with Perfusion weighted MR Imaging: Comparison with Pre and Post acetazolamide 133Xe SPECT in Occlusive Carotid Disease
... regional cerebral blood volume (rCBV) and regional cerebral blood flow (rCBF) studies from dynamic susceptibility contrast-enhanced MR images after an intravenous bolus injection of ...
7
Dynamic Susceptibility Contrast Perfusion MR Imaging of Multiple Sclerosis Lesions: Characterizing Hemodynamic Impairment and Inflammatory Activity
... The DSC-MRI images were sent to an off-line SUN Sparc Ultra 10 workstation (Sun Microsystems, Mountain View, CA) for further postprocessing. The perfusion data was analyzed using software developed in-house based on the ...
9
Theoretic Basis and Technical Implementations of CT Perfusion in Acute Ischemic Stroke, Part 1: Theoretic Basis
... correct cerebral blood flow (CBF) and cerebral blood volume (CBV) threshold selection, and the selection of appropriate perfusion parame- ters for correct estimation of penumbra are ...
7
Lhermitte Duclos Disease: Assessment with MR Imaging, Positron Emission Tomography, Single photon Emission CT, and MR Spectroscopy
... and cerebral aqueduct with an obstructive ...regional cerebral blood volume (rCBV) and regional cerebral blood flow (rCBF) (Fig 2A) with an asymmetry index (relative values) of ...
7
Quantitative Diffusion Weighted and Dynamic Susceptibility Weighted Contrast Enhanced Perfusion MR Imaging Analysis of T2 Hypointense Lesion Components in Pediatric Diffuse Intrinsic Pontine Glioma
... ⫽ cerebral blood flow; CBV ⫽ cerebral blood volume; DIPG ⫽ diffuse intrinsic pontine glioma; DSC ⫽ dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging; DTI ⫽ ...
8
Occlusive radiation cerebral vasculopathy implies medical complexity: a case report
... matched cerebral blood volume (CBV) defect (that is, infarct ...infarct volume 14.97 ml (Fig. 3). A conventional cerebral angiogram showed evidence of right M1 occlusion with collateral ...
8
Hemodynamic and Permeability Changes in Posterior Reversible Encephalopathy Syndrome Measured by Dynamic Susceptibility Perfusion Weighted MR Imaging
... decreased blood flow, ischemia, and cytotoxic edema (7). Recent studies of cerebral per- fusion in PRES have shown decreased cerebral blood volume (CBV) and cerebral blood ...
6
Use of neuroimaging to guide the treatment of patients beyond the 8-hour time window
... ⫽ cerebral blood flow; CBV ⫽ cerebral blood volume; CDM ⫽ clinical–diffusion mismatch; CTP ⫽ CT perfusion; DEDAS ⫽ Dose Escalation of Desmoteplase in Acute Stroke; DEFUSE ⫽ ...
6
Effects of Dexamethasone on Cerebral Perfusion and Water Diffusion in Patients with High Grade Glioma
... tumor blood flow, but may increase perfusion in peritumoral edematous brain through a marked decline in peritumoral water content, and hence local tissue pressure, caused by the initial reduction in ...
7
Application of acute stroke imagingSelecting patients for revascularization therapy
... BBB⫽ blood–brain barrier; CBF ⫽ cerebral blood flow; CBV ⫽ cerebral blood volume; CTA ⫽ CT angiography; CTP ⫽ CT perfusion; DWI ⫽ diffusion-weighted imaging; ET ⫽ endovascular ...
10
Neuroimaging markers of hemorrhagic risk with stroke reperfusion therapy
... ⫽ blood–brain barrier; CBF ⫽ cerebral blood flow; CBV ⫽ cerebral blood volume; DEFUSE ⫽ Diffusion and Perfusion Imaging Evaluation for Under- standing Stroke Evolution; ECASS ⫽ ...
6