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Condition: Stroke
Procedure: Perfusion

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Total 4550 results found since Jan 2013.

Alberta Stroke Program Early CT Score and collateral status predict target mismatch in large vessel occlusion with delayed time windows
Conclusions NCCT ASPECTS had a strong correlation with CTP core volumes in patients with LVO-AIS in delayed time windows. Combining NCCT ASPECTS with sCTA-CS resulted in a more accurate prediction of target mismatch. If a CTP scan is not available, NCCT ASPECTS combined with sCTA-CS may guide clinicians in making treatment decisions.
Source: Journal of NeuroInterventional Surgery - August 17, 2023 Category: Neurosurgery Authors: Hang, Y., Wang, C. d., Ni, H., Cao, Y., Zhao, L. B., Liu, S., Shi, H.-B., Jia, Z. Tags: Ischemic stroke Source Type: research

Prognostic Value of Venous Outflow Profiles on Multiphase CT Angiography for the Patients with Acute Ischemic Stroke After Endovascular Thrombectomy
This study supports that favorable peak venous VO profiles on mCTA might be a promising biomarker in predicting the good outcome in patients with AIS after EVT.
Source: Translational Stroke Research - September 5, 2023 Category: Neurology Source Type: research

Leukoaraiosis and Sex Predict the Hyperacute Ischemic Core Volume Original Contributions
Conclusions— Severe LA and male sex are associated with larger infarct cores, which adds to the notion that sex and LA alter the brain’s intrinsic susceptibility to acute cerebral ischemia. Future, larger studies are needed to confirm our observation that women have smaller core volumes and its significance.
Source: Stroke - December 24, 2012 Category: Neurology Authors: Henninger, N., Lin, E., Haussen, D. C., Lehman, L. L., Takhtani, D., Selim, M., Moonis, M. Tags: Acute Cerebral Infarction, Computerized tomography and Magnetic Resonance Imaging, Risk Factors for Stroke Original Contributions Source Type: research

Early identification of potentially salvageable tissue with MRI-based predictive algorithms after experimental ischemic stroke
& Rick M Dijkhuizen
Source: Journal of Cerebral Blood Flow - April 10, 2013 Category: Neurology Authors: Mark J R J BoutsIvo A C W TieboschAnnette van der ToornMax A ViergeverOna WuRick M Dijkhuizen Tags: diffusion-weighted imaging ischemic stroke MRI perfusion imaging salvageable tissue tissue outcome prediction Source Type: research

Failure of collateral blood flow is associated with infarct growth in ischemic stroke
Donnan & Stephen M Davis
Source: Journal of Cerebral Blood Flow - May 8, 2013 Category: Neurology Authors: Bruce CV CampbellSøren ChristensenBrian M TressLeonid ChurilovPatricia M DesmondMark W ParsonsP Alan BarberChristopher R LeviChristopher BladinGeoffrey A DonnanStephen M Davis Tags: collateral blood flow ischemic stroke magnetic resonance imaging perfusion imaging thrombolysis Source Type: research

CT Perfusion in Acute Stroke: Added Value or Waste of Time? Letters to the Editor
Source: Stroke - August 26, 2013 Category: Neurology Authors: Sharma, M., Pelz, D. M. Tags: Angiography, Computerized tomography and Magnetic Resonance Imaging, Other imaging, Pathology of Stroke Letters to the Editor Source Type: research

Lesion development and reperfusion benefit in relation to vascular occlusion patterns after embolic stroke in rats
amp; Rick M Dijkhuizen
Source: Journal of Cerebral Blood Flow - December 4, 2013 Category: Neurology Authors: Mark J R J BoutsIvo A C W TieboschAnnette van der ToornJeroen HendrikseRick M Dijkhuizen Tags: diffusion-weighted imaging ischemic stroke magnetic resonance angiography perfusion imaging prediction Source Type: research

Spectroscopy of reperfused tissue after stroke reveals heightened metabolism in patients with good clinical outcomes
& Mark W Parsons
Source: Journal of Cerebral Blood Flow - October 1, 2014 Category: Neurology Authors: Andrew BivardVenkatesh KrishnamurthyPeter StanwellNawaf YassiNeil J SprattMichael NilssonChristopher R LeviStephen DavisMark W Parsons Tags: acute stroke glutamate lactate MR spectroscopy perfusion-weighted MRI reperfusion regeneration and recovery Source Type: research

Imaging selection in ischemic stroke: Feasibility of automated CT‐perfusion analysis
ConclusionsAutomated CTP‐based mismatch selection is rapid, robust in clinical practice, and associated with faster treatment decisions than MRI. This technological advance has the potential to improve the standardization and reproducibility of interpretation of advanced imaging and extend use to practice settings beyond highly specialized academic centers.
Source: International Journal of Stroke - October 16, 2014 Category: Neurology Authors: Bruce C.V. Campbell, Nawaf Yassi, Henry Ma, Gagan Sharma, Simon Salinas, Leonid Churilov, Atte Meretoja, Mark W. Parsons, Patricia M. Desmond, Maarten G. Lansberg, Geoffrey A. Donnan, Stephen M. Davis Tags: Research Source Type: research

Early microvascular dysfunction in cerebral small vessel disease is not detectable on 3.0 Tesla magnetic resonance imaging: a longitudinal study in spontaneously hypertensive stroke-prone rats
Conclusion Serial MRI at a field strength of 3 T failed to detect the initial microvascular dysfunction and subsequent small perivascular bleeds in SHRSP; only terminal stages of cerebral microangiopathy were reliably detected. Further investigations at higher magnetic field strengths (7 T) using blood- and flow-sensitive sequences are currently underway.
Source: Experimental and Translational Stroke Medicine - June 25, 2013 Category: Neurology Source Type: research

Quantitative T2'-Mapping in Acute Ischemic Stroke Clinical Sciences
Conclusions— Motion-corrected T2'-mapping reveals significant and gradually declining values from healthy to perfusion-disturbed to apparent diffusion coefficient-restricted tissue. Current T2'-mapping can differentiate between the ischemic core and the perfusion-impaired areas but not on its own between penumbral and oligemic tissue.
Source: Stroke - October 27, 2014 Category: Neurology Authors: Bauer, S., Wagner, M., Seiler, A., Hattingen, E., Deichmann, R., Noth, U., Singer, O. C. Tags: Imaging, Acute Cerebral Infarction, Brain Circulation and Metabolism, Computerized tomography and Magnetic Resonance Imaging, Other imaging Clinical Sciences Source Type: research

Intra-arterial Administration of Papaverine during Mechanical Thrombectomy for Acute Ischemic Stroke
The use of stent retrievers for mechanical thrombectomy in acute ischemic stroke may induce significant vasospasm, which at the early phases of reperfusion may be crucial for rethrombosis of the recanalized vessel. We aimed to study whether the use of intra-arterial papaverine in selected cases of vasospasm was associated with improved cerebral perfusion, arterial reocclusion, or increased hemorrhagic complications.
Source: Journal of Stroke and Cerebrovascular Diseases - November 13, 2014 Category: Neurology Authors: Gerasimos Baltsavias, Susmitha Yella, Rahman Abdul Al Shameri, Andreas Luft, Anton Valavanis Source Type: research

Spectroscopy of reperfused tissue after stroke reveals heightened metabolism in patients with good clinical outcomes
& Mark W Parsons
Source: Journal of Cerebral Blood Flow and Metabolism - December 1, 2014 Category: Neuroscience Authors: Andrew BivardVenkatesh KrishnamurthyPeter StanwellNawaf YassiNeil J SprattMichael NilssonChristopher R LeviStephen DavisMark W Parsons Tags: acute stroke glutamate lactate MR spectroscopy perfusion-weighted MRI reperfusion regeneration and recovery Source Type: research

Postischemic hyperperfusion on arterial spin labeled perfusion MRI is linked to hemorrhagic transformation in stroke
Noriko Salamon & Danny JJ Wang
Source: Journal of Cerebral Blood Flow - January 7, 2015 Category: Neurology Authors: Songlin YuDavid S LiebeskindSumit DuaHolly WilhalmeDavid ElashoffXin J QiaoJeffry R AlgerNerses SanossianSidney StarkmanLatisha K AliFabien ScalzoXin LouBryan YooJeffrey L SaverNoriko SalamonDanny JJ Wang Tags: arterial spin labeling (ASL) acute ischemic stroke (AIS) hemorrhagic transformation (HT) hyperperfusion Source Type: research

Using Standard First-Pass Perfusion Computed Tomographic Data to Evaluate Collateral Flow in Acute Ischemic Stroke Clinical Sciences
Conclusions— Ktrans maps extracted from standard first-pass perfusion computed tomography are correlated with collateral circulation status after acute proximal arterial occlusion and predictive of outcome.
Source: Stroke - March 23, 2015 Category: Neurology Authors: Chen, H., Wu, B., Liu, N., Wintermark, M., Su, Z., Li, Y., Hu, J., Zhang, Y., Zhang, W., Zhu, G. Tags: Computerized tomography and Magnetic Resonance Imaging Clinical Sciences Source Type: research