Collateral Flow
Comparison of CTA and DSA Based Collateral Flow Assessment in Patients with Anterior Circulation Stroke
... poor collateral flow) and good (moderate and good collateral flow), and mRS was di- chotomized into a score of 0 –2 (functional independence) versus 3– ...
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Slow Collateral Flow Is Associated with Thrombus Extension in Patients with Acute Large Artery Occlusion
... We also performed subanalysis for patients who underwent dif- ferent imaging techniques for evaluation of collateral flow. In pa- tients who underwent CTP, those with thrombus extension tended to have ...
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Effect of collateral flow on epicardial and endocardial lysosomal hydrolases in acute myocardial ischemia
... Moreover, decreases of total N-acetyl-beta-glucosaminidase in the HL fraction and of total beta-glucuronidase and acid phosphatase in the LL fraction were positively correlated (P less than 0.01) with the degree of ...
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Transcranial color coded duplex sonography in the evaluation of collateral flow through the circle of Willis
... Sensitivity, specificity, and positive and neg- ative predictive values for TCCD detection of collateral flow through the PCoA ranged from 84% to 94% in patients with occlusive carotid artery disease and ...
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Systematic Review of Methods for Assessing Leptomeningeal Collateral Flow
... of flow in leptomeningeal collaterals is linked with positive outcomes after stroke, but there is little consis- tency in the methods used to grade the efficacy of collateral ...targeting collateral ...
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Compensatory patterns of collateral flow in stroke patients with unilateral and bilateral carotid stenosis
... blood flow volume, which is an indicator of cerebral perfusion ...blood flow volume estimated by CVIQ is an independent predictor of functional outcome and recurrent stroke [11, ...the collateral ...
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Relative Filling Time Delay Based on CT Perfusion Source Imaging: A Simple Method to Predict Outcome in Acute Ischemic Stroke
... We found that a simple visual rating of collateral flow by using CTP source images is significantly associated with clinical and radiologic outcome in ischemic stroke. The relative filling time delay ...
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Reporting Terminology for Lumbar Disk Herniations: Axial Segmentation of the Preneural Foraminal Portion of the Lumbar Nerve Roots
... take collateral status into ...sufficient collateral status likely is a predictor for a good outcome, if recanalization and reperfusion can be rapidly ...proximal flow cessation, the location of ...
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How well do blood flow imaging and collaterals on angiography predict brain at risk?
... blood flow in the setting of acute stroke, better methods of patient selection need to be ...blood flow and angiographic results acquired prior to endovascular therapy may help determine areas of brain at ...
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Assessment of the Collateral Function of the Circle of Willis
... blood flow can be assessed with phase- contrast MR ...of flow in the circle of Willis (36, ...retrograde flow in the A1 segments (which indicates collateral flow via the AcoA), the ...
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Relationship Between Circle of Willis Morphology on 3D Time of Flight MR Angiograms and Transient Ischemia During Vascular Clamping of the Internal Carotid Artery During Carotid Endarterectomy
... of collateral flow from the posterior circulation is associated with a high risk of transient cerebral ischemia during carotid artery clamping, in- dicating that the presence of collateral ...
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Prediction of Infarction and Reperfusion in Stroke by Flow and Volume Weighted Collateral Signal in MR Angiography
... favorable collateral measure independent of other variables included in the ...that collateral flow assessed by DSA or CTA is an independent predictor of outcome with respect to other known ...
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Are the Variants of the Circle of Willis Determined by Genetic or Environmental Factors? Results of a Twin Study and Review of the Literature
... The collateral flow in the CW has been widely investigated in patients with internal carotid artery (ICA) occlusion or stenosis, and intact collat- erals seem to have a key role in maintaining cerebral ...
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An ultrasound model to calculate the brain blood outflow through collateral vessels: a pilot study
... the flow returning from the head through the cervical veins and the collaterals of the internal jugular vein (IJV), is becoming of prominent interest in clinical ...cerebral flow (CBF) defined as the sum of ...
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Peripheral collateral blood flow and vascular reactivity in the dog
... In the hindlimb experiments with acute ligation of the femoral artery, average collateral flow venous outflow was 24.1 2.4 ml per minute, and mean local arterial pressure below the obstr[r] ...
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Congenital Absence of the Internal Carotid Artery: Case Reports and Review of the Collateral Circulation
... of flow-related signal inten- sity within the left supraclinoid ICA (Fig 2A), with collateral flow to the left anterior cerebral (ACA) and middle cerebral (MCA) arteries via a patent anterior ...
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Right subclavian double steal syndrome: a case report
... blood flow; a fact that has been demonstrated experimentally with no change in cerebral blood flow or electroencephalogram (EEG) activity in the presence of reversed vertebral artery flow ...blood ...
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Jugular Anomalies in Multiple Sclerosis Are Associated with Increased Collateral Venous Flow
... we evaluated the reliability of total cerebral blood flow values (ICA ⫹ vertebral artery for the C2–C3 neck level), as well as total type II and III venous flow indicators. All rater pairs met a reli- ...
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Mootness Contingent Collateral Consequences in the Context of Collateral Challenges
... He said that the possibility of a prior parole violation being the basis for a future parole denial is not sufficient to bring the case within the doctrine of Carafas.3 7 He pointed out [r] ...
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Rapamycin Increases Collateral Circulation in Rodent Brain after Focal Ischemia as detected by Multiple Modality Dynamic Imaging
... blood flow and vascular functions, including regulating vascular tone, transferring vascular signals, stimulating angiogenesis, and promoting vas- cular remodeling, platelet aggregation, and leukocyte- endothelial ...
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