Filtered By:
Source: Stroke
Procedure: Perfusion

This page shows you your search results in order of date. This is page number 4.

Order by Relevance | Date

Total 155 results found since Jan 2013.

Identification of Reversible Disruption of the Human Blood-Brain Barrier Following Acute Ischemia Brief Reports
Conclusions— This study demonstrates that diffuse, mild BBB disruption in the acutely ischemic human brain is reversible with reperfusion. This study also confirms prior findings that focal severe BBB disruption confers an increased risk of hemorrhagic transformation in patients treated with intravenous tissue-type plasminogen activator.
Source: Stroke - August 21, 2016 Category: Neurology Authors: Simpkins, A. N., Dias, C., Leigh, R., on behalf of the National Institutes of Health Natural History of Stroke Investigators, Benson, Hsia, Latour, Luby, Lynch, Merino, Nadareishvili, Warach Tags: Magnetic Resonance Imaging (MRI), Blood-Brain Barrier, Intracranial Hemorrhage, Ischemic Stroke Brief Reports Source Type: research

How Patient Demographics, Imaging, and Beliefs Influence Tissue-Type Plasminogen Activator Use: A Survey of North American Neurologists Clinical Sciences
Conclusions— Diagnostic certainty and likelihood of treatment with tissue-type plasminogen activator increase with additional clinical data, with the history being the most important factor for diagnostic and treatment decisions. Respondents had difficulty in interpreting the results of CT perfusion scans although they had little impact on treatment decisions. We did not identify treatment bias based on patient age, race, or sex.
Source: Stroke - July 24, 2016 Category: Neurology Authors: Shamy, M. C. F., Pugliese, M., Meisel, K., Rodriguez, R., Kim, A. S., Stahnisch, F. W., Smith, E. E. Tags: Computerized Tomography (CT), Ethics and Policy, Quality and Outcomes, Ischemic Stroke Clinical Sciences Source Type: research

Interaction of Recanalization, Intracerebral Hemorrhage, and Cerebral Edema After Intravenous Thrombolysis Clinical Sciences
Conclusions— Large ischemic core was associated with poorer outcomes and both early vasogenic brain edema and ICH, but recanalization on 24-hour CT angiography was associated with clinically favorable outcome. There was no significant interaction of recanalization and large core volume for any outcomes. The association of hemorrhage or brain edema with post-thrombolysis reperfusion is unclear.
Source: Stroke - June 26, 2016 Category: Neurology Authors: Cheripelli, B. K., Huang, X., MacIsaac, R., Muir, K. W. Tags: Cerebrovascular Disease/Stroke, Intracranial Hemorrhage, Ischemic Stroke Clinical Sciences Source Type: research

Utility of Computed Tomographic Perfusion in Thrombolysis for Minor Stroke Brief Reports
Conclusions— In selected MIS patients with demonstrable penumbra on computed tomographic perfusion, IV-tPA is safe and associated with significant improvement in functional outcome at discharge and 90 days.
Source: Stroke - June 26, 2016 Category: Neurology Authors: Ng, F. C., Coote, S., Frost, T., Bladin, C., Choi, P. M. Tags: Computerized Tomography (CT), Diagnostic Testing, Treatment, Cerebrovascular Disease/Stroke, Ischemic Stroke Brief Reports Source Type: research

Arterial Spin Labeling Perfusion Magnetic Resonance Imaging Performed in Acute Perinatal Stroke Reveals Hyperperfusion Associated With Ischemic Injury Clinical Sciences
Conclusions— Perfusion-weighted imaging can be obtained in neonates with acute stroke and often reveals hyperperfusion in the infarct core. Penumbra in arterial ischemic stroke is seldom found. Hyperperfusion may be caused by poststroke reperfusion or to neuronal hyperexcitability of stroke-associated seizure. Its identification may be useful for consideration of therapy for acute neonatal stroke.
Source: Stroke - May 22, 2016 Category: Neurology Authors: Watson, C. G., Dehaes, M., Gagoski, B. A., Grant, P. E., Rivkin, M. J. Tags: Pediatrics, Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke, Ischemic Stroke Clinical Sciences Source Type: research

Pial Collateral Reactivity During Hypertension and Aging: Understanding the Function of Collaterals for Stroke Therapy Basic Sciences
Conclusions— This study shows for the first time that LMAs from young and aged SHR are vasoconstricted and have impaired vasodilatory responses that may contribute to greater perfusion deficit and little penumbral tissue. These results also suggest that therapeutic opening of pial collaterals is possible during middle cerebral artery occlusion to create penumbral tissue and prevent infarct expansion.
Source: Stroke - May 22, 2016 Category: Neurology Authors: Chan, S.-L., Sweet, J. G., Bishop, N., Cipolla, M. J. Tags: Animal Models of Human Disease, Endothelium/Vascular Type/Nitric Oxide, Vascular Biology, Cerebrovascular Disease/Stroke, Ischemic Stroke Basic Sciences Source Type: research

Timing of Occurrence Is the Most Important Characteristic of Spot Sign Clinical Sciences
Conclusions— Redefining the spot sign based on timing of contrast leakage on CTP to determine early-occurring spot sign improves the specificity for predicting HE and 3-month mortality. The use of early-occurring spot sign could improve the selection of ICH patients for potential hemostatic therapy.
Source: Stroke - April 24, 2016 Category: Neurology Authors: Wang, B., Yan, S., Xu, M., Zhang, S., Liu, K., Hu, H., Selim, M., Lou, M. Tags: Angiography, Computerized Tomography (CT), Imaging, Intracranial Hemorrhage Clinical Sciences Source Type: research

Association Between Time From Stroke Onset and Fluid-Attenuated Inversion Recovery Lesion Intensity Is Modified by Status of Collateral Circulation Clinical Sciences
Conclusions— Our findings show that the relationship between time from symptom onset and rFLAIR lesion intensity depends on collateral status. In patients with good collaterals, the development of an rFLAIR-positive lesion is less dependent on time from symptom onset compared with patients with poor collaterals.
Source: Stroke - March 27, 2016 Category: Neurology Authors: Wouters, A., Dupont, P., Christensen, S., Norrving, B., Laage, R., Thomalla, G., Albers, G., Thijs, V., Lemmens, R. Tags: Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke, Ischemic Stroke Clinical Sciences Source Type: research

Perfusion Computed Tomography for the Evaluation of Acute Ischemic Stroke: Strengths and Pitfalls Topical Reviews
Source: Stroke - March 27, 2016 Category: Neurology Authors: Heit, J. J., Wintermark, M. Tags: Computerized Tomography (CT), Imaging, Revascularization, Cerebrovascular Procedures, Ischemic Stroke Topical Reviews Source Type: research

Relationship Between Collateral Status, Contrast Transit, and Contrast Density in Acute Ischemic Stroke Clinical Sciences
Conclusions— Visual collateral status, contrast peak density, and contrast peak time delay were inter-related, and good collateral status was strongly associated with contrast peak density. Contrast peak density in collateral vessel may be an important factor in tissue fate in acute ischemic stroke.
Source: Stroke - February 22, 2016 Category: Neurology Authors: Kawano, H., Bivard, A., Lin, L., Spratt, N. J., Miteff, F., Parsons, M. W., Levi, C. R. Tags: Cerebrovascular Disease/Stroke, Ischemic Stroke Clinical Sciences Source Type: research

Thrombus Length Estimation on Delayed Gadolinium-Enhanced T1 Clinical Sciences
Conclusions— The dGE-T1, obtained by simply adjusting scanning order in multimodal magnetic resonance imaging protocol, is a useful tool for thrombus length estimation and middle cerebral artery recanalization prediction after IVT.
Source: Stroke - February 22, 2016 Category: Neurology Authors: Yan, S., Chen, Q., Xu, M., Sun, J., Liebeskind, D. S., Lou, M. Tags: Angiography, Ischemic Stroke Clinical Sciences Source Type: research

Cortical Venous Filling on Dynamic Computed Tomographic Angiography: A Novel Predictor of Clinical Outcome in Patients With Acute Middle Cerebral Artery Stroke Clinical Sciences
Conclusions— The combination of extent and velocity of optimal CVF, as assessed with dynamic CT angiography, is useful to identify patients with acute middle cerebral artery stroke at higher risk of poor clinical outcome at 3-month follow-up. Clinical Trial Registration— URL: http://www.trialregister.nl/trialreg and http://www.clinicaltrials.gov. Unique identifier: NTR1804 and NCT00880113, respectively.
Source: Stroke - February 22, 2016 Category: Neurology Authors: van den Wijngaard, I. R., Wermer, M. J. H., Boiten, J., Algra, A., Holswilder, G., Meijer, F. J. A., Dippel, D. W. J., Velthuis, B. K., Majoie, C. B. L. M., van Walderveen, M. A. A. Tags: Computerized Tomography (CT), Imaging, Prognosis, Cerebrovascular Disease/Stroke, Ischemic Stroke Clinical Sciences Source Type: research

Clinical and Procedural Predictors of Outcomes From the Endovascular Treatment of Posterior Circulation Strokes Clinical Sciences
Conclusions— Time to the start of the procedure is an important predictor of clinical success after thrombectomy in patients with posterior circulation strokes. Both stent retriever and aspiration thrombectomy as primary treatment approaches are effective in achieving successful recanalization.
Source: Stroke - February 22, 2016 Category: Neurology Authors: Mokin, M., Sonig, A., Sivakanthan, S., Ren, Z., Elijovich, L., Arthur, A., Goyal, N., Kan, P., Duckworth, E., Veznedaroglu, E., Binning, M. J., Liebman, K. M., Rao, V., Turner, R. D., Turk, A. S., Baxter, B. W., Dabus, G., Linfante, I., Snyder, K. V., Lev Tags: Cerebrovascular Disease/Stroke, Cerebrovascular Procedures Clinical Sciences Source Type: research

Fluid-Attenuated Inversion Recovery Vascular Hyperintensities-Diffusion-Weighted Imaging Mismatch Identifies Acute Stroke Patients Most Likely to Benefit From Recanalization Clinical Sciences
Conclusion— The FVH-DWI mismatch may rapidly identify patients with proximal occlusion most likely to benefit from recanalization.
Source: Stroke - January 25, 2016 Category: Neurology Authors: Legrand, L., Tisserand, M., Turc, G., Edjlali, M., Calvet, D., Trystram, D., Roca, P., Naggara, O., Mas, J.-L., Meder, J.-F., Baron, J.-C., Oppenheim, C. Tags: Computerized Tomography (CT), Magnetic Resonance Imaging (MRI), Treatment, Ischemic Stroke Clinical Sciences Source Type: research

Association Between CT Angiogram Collaterals and CT Perfusion in the Interventional Management of Stroke III Trial Brief Reports
Conclusion— Better collaterals were associated with smaller ischemic core and higher mismatch in the IMS III trial. Collateral assessment and perfusion imaging identify the same biological construct about ischemic tissue sustenance.
Source: Stroke - January 25, 2016 Category: Neurology Authors: Vagal, A., Menon, B. K., Foster, L. D., Livorine, A., Yeatts, S. D., Qazi, E., dEsterre, C., Shi, J., Demchuk, A. M., Hill, M. D., Liebeskind, D. S., Tomsick, T., Goyal, M. Tags: Computerized Tomography (CT), Imaging, Ischemic Stroke Brief Reports Source Type: research