... and quantitative positron emission tomography (PET) imaging, non-deconvolved parameters were validated with the gold standard for penumbral-flow (PF) detection 15 O-water PET. Performance of PW parameters was assessed by a receiver operating characteristic curve analysis to identify the accuracy of each PWI map...

... imaging Positron emission tomography Diffusion tensor imaging Stroke is a major global health problem and a leading cause of long-term adult disability worldwide. Despite a statistically significant reduction in the rates of incidence, mortality, and disability-adjusted life years from 1990...

... according to the same protocol with real rTMS. Language activation patterns were assessed with positron emission tomography prior to and after the treatment; 95% confidence intervals for changes in language performance scores and the activated brain volumes in both hemispheres were derived from TMS...

... tomography, ivy sign proliferation correlated with decreases in cerebrovascular reserve. However, a decreased vascular reserve is not concrete. The purpose of this study was to evaluate the correlation between ivy sign proliferation and the findings of 15 O gas positron emission tomography (PET). Methods...

...-invasive methods by which regional flow and energy metabolism can be repeatedly investigated to demonstrate penumbra tissue that can benefit from therapeutic interventions. Positron emission tomography (PET) allows the quantification of regional cerebral blood flow, the regional metabolic rate for oxygen...

...Cornelius Weiller Three major studies have investigated the reorganisation of the human motor system after stroke by measuring changes in regional cerebral blood flow during defined tasks with positron emission tomography. The results imply that there is considerable scope for functional plasticity...

... perfusion positron emission tomography scanning while undertaking a repetitive, graded force exertion task with the hand affected by stroke, and at rest. We correlated regional cerebral blood flow (rCBF) and force exerted, and compared the distribution of blood flow in all active states with that at rest...

...*-weighted MRI has been suggested as a potential marker of high OEF. Methods: We compared T2*-weighted images from pre-contrast arrival perfusion scans against quantitative positron emission tomography in 5 patients studied 7–21 h after onset of carotid territory stroke. OEF and T2* signal were obtained...

...), but it is not known whether the treatment also reduces arterial wall inflammation. We used 18 F-fluorodeoxygluose positron emission tomography ( 18 F-FDG PET) to investigate whether long-term homocysteine-lowering treatment alters arterial wall inflammation in patients with a history of ischemic stroke. Methods: 30...

... or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Atheroma Magnetic resonance imaging Computed tomography Positron emission tomography...

... making in acute stroke management. However, its pathophysiological counterpart needs further evaluation. Methods: By comparative imaging with diffusion-weighted imaging and 15 O-water positron emission tomography we aimed to interpret early (<6 h) hypoattenuation. Results: In 11 patients...

... ischaemic stroke represents metabolically, we prospectively imaged acute carotid-territory stroke patients with DWI along with fully quantitative positron emission tomography (PET), which gives physiological maps of cerebral blood flow (CBF), the cerebral metabolic rate of oxygen (CMRO 2 ) and the oxygen...

... on intracranial vasculature, but also on the capacity of the collateral circulation and the pattern of poorly perfused brain tissue. The objective of our study was to evaluate whether the presence and size of critically hypoperfused tissue assessed with flow positron emission tomography (PET) as a gold standard...

... with positron emission tomography (PET) using the steady state technique with 15 O in order to assess regional cerebral blood flow (rCBF), regional oxygen extraction rate (rOER) and regional metabolic rate for oxygen (rCMRO 2 ) in different brain regions. The findings in 10 patients with (VaDP) were compared...

... only rarely. Out of a series of 30 patients with first-ever middle cerebral artery (MCA) territory stroke, we analyzed the data from 19 survivors investigated by 15 O positron emission tomography (PET) both in the acute (within 5–18 h of clinical onset) and subacute (approximately 3 weeks later) stage...

... the basal ganglia and the anterior temporal cortex. The oligaemia also affects the cortex, but surrounds the penumbra and has less reduced CBF thanks to the cortical anastomoses. Figure  1 illustrates this topography. Cerebral ischaemia Penumbra Positron emission tomography Cerebral blood flow...

...J. De Reuck; H. Stevens; H. Jansen; J. Keppens; K. Strijckmans; P. Goethals; I. Lemahieu; P. Santens; J. Korf Cobalt-55 ( 55 Co) is a positron emission tomography (PET) tracer used to demonstrate brain damage, possibly associated to calcium-mediated processes. The degree of 55 Co accumulation...

... in permanent infarction. Positron emission tomography studies of cerebral blood flow (CBF), cerebral metabolic rate of oxygen (CMRO 2 ) and cerebral metabolic rate of glucose (CMRglc) can be used to demonstrate the effect of treatment on functional variables within tissue showing perfusional disturbances...

... patients with chronic MCA infarction and 22 healthy volunteers were studied using positron emission tomography and the oxygen-15 ( 15 O) steady-state technique. In 43% of our patients decreased regional cerebral metabolic rate of O 2 (rCMRO 2 ) in the contralateral mirror region and in the total...

... from any ideas, methods, instructions or products referred to in the content or advertisements. Postinfarction seizures Thromboembolic cerebral infarct Positron emission tomography 28 8 1995 Original Paper Cercbrovasc Dis 1995;5:328-333 J. De Rendea D. Decoo3 L. AlgoedA P. Boon3 G...