Filtered By:
Condition: Thrombosis
Education: Study
Procedure: MRI Scan

This page shows you your search results in order of relevance.

Order by Relevance | Date

Total 226 results found since Jan 2013.

Does b1000-b0 Mismatch Challenge Diffusion-Weighted Imaging-Fluid Attenuated Inversion Recovery Mismatch in Stroke? Brief Reports
Conclusions— b1000–b0 mismatch may identify patients with ischemic stroke of the within 4.5 hours of onset with high positive predictive value, perhaps constituting an alternative imaging tissue clock.
Source: Stroke - February 22, 2016 Category: Neurology Authors: Geraldo, A. F., Berner, L.-P., Haesebaert, J., Chabrol, A., Cho, T.-H., Derex, L., Hermier, M., Louis-Tisserand, G., Chamard, L., Klaerke Mikkelsen, I., Ribe, L., Ostergaard, L., Hjort, N., Pedraza, S., Thomalla, G., Baron, J.-C., Nighoghossian, N., Berth Tags: Cardiopulmonary Resuscitation and Emergency Cardiac Care, Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke, Ischemic Stroke, Thrombosis Brief Reports Source Type: research

Thrombolysis in Ischemic Stroke Without Arterial Occlusion at Presentation Clinical Sciences
Conclusions— This study provides crucial data that patients with ischemic stroke who do not have visible arterial occlusion at presentation may benefit from thrombolysis.
Source: Stroke - August 25, 2014 Category: Neurology Authors: Lahoti, S., Gokhale, S., Caplan, L., Michel, P., Samson, Y., Rosso, C., Limaye, K., Hinduja, A., Singhal, A., Ali, S., Pettigrew, L. C., Kryscio, R., Dedhia, N., Hastak, S., Liebeskind, D. S. Tags: Cerebral Lacunes, Embolic stroke, Computerized tomography and Magnetic Resonance Imaging, Pathology of Stroke, Thrombolysis Clinical Sciences Source Type: research

Vessel Wall Magnetic Resonance Imaging in Acute Ischemic Stroke: Effects of Embolism and Mechanical Thrombectomy on the Arterial Wall Clinical Sciences
Conclusions— Mechanical thrombectomy results in intracranial arterial wall thickening and enhancement, potentially mimicking the VW-MRI appearance of primary arteritis. This arterial wall abnormality is less common in patients with arterial occlusion who have been treated with medical therapy alone.
Source: Stroke - July 28, 2014 Category: Neurology Authors: Power, S., Matouk, C., Casaubon, L. K., Silver, F. L., Krings, T., Mikulis, D. J., Mandell, D. M. Tags: Embolic stroke, Computerized tomography and Magnetic Resonance Imaging, Pathology of Stroke, Primary and Secondary Stroke Prevention Clinical Sciences Source Type: research

Younger Stroke Patients With Large Pretreatment Diffusion-Weighted Imaging Lesions May Benefit From Endovascular Treatment Clinical Sciences
Conclusions— There was a growing risk for poor outcome and symptomatic intracerebral hemorrhage with increasing pretreatment DWI lesion volumes. Nevertheless, favorable outcome was achieved in every third patient with DWI lesions >70 mL after successful endovascular reperfusion, whereas after poor or failed reperfusion, outcome was favorable in only every 12th patient. Therefore, endovascular treatment might be considered in patients with large DWI lesions, especially in younger patients.
Source: Stroke - August 24, 2015 Category: Neurology Authors: Gilgen, M. D., Klimek, D., Liesirova, K. T., Meisterernst, J., Klinger-Gratz, P. P., Schroth, G., Mordasini, P., Hsieh, K., Slotboom, J., Heldner, M. R., Broeg-Morvay, A., Mono, M.-L., Fischer, U., Mattle, H. P., Arnold, M., Gralla, J., El-Koussy, M., Jun Tags: Acute Cerebral Infarction, Thrombolysis, Other Stroke Treatment - Medical Clinical Sciences Source Type: research

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

Worse stroke outcome in atrial fibrillation is explained by more severe hypoperfusion, infarct growth, and hemorrhagic transformation
ConclusionAtrial fibrillation is associated with greater volumes of more severe baseline hypoperfusion, leading to higher infarct growth, more frequent severe hemorrhagic transformation and worse stroke outcomes.
Source: International Journal of Stroke - March 12, 2013 Category: Neurology Authors: Hans T. H. Tu, Bruce C. V. Campbell, Soren Christensen, Patricia M. Desmond, Deidre A. De Silva, Mark W. Parsons, Leonid Churilov, Maarten G. Lansberg, Michael Mlynash, Jean‐Marc Olivot, Matus Straka, Roland Bammer, Gregory W. Albers, Geoffrey A. Donnan Tags: Research Source Type: research

Thrombolytic Therapy Is an Only Determinant Factor for Stroke Evolution in Large Anterior Choroidal Artery Infarcts
Conclusions: Thrombolytic therapy is an only determinant factor for stroke evolution in large AChA infarcts, which reduced the risk of stroke evolution and improved functional outcome.
Source: Journal of Stroke and Cerebrovascular Diseases - October 16, 2013 Category: Neurology Authors: Meng-Chen Wu, Li-Kai Tsai, Chung-Chu Wu, Shin-Joe Yeh, Sung-Chun Tang, Yun-Ju Chen, Chien-Lin Chen, Jiann-Shing Jeng Tags: Original Articles Source Type: research

Safety and Effectiveness of Endovascular Treatment after 6 Hours of Symptom Onset in Patients with Anterior Circulation Ischemic Stroke: A Matched Case Control Study
Conclusions: We did not observe any evidence of benefit in halting neurologic worsening or improving outcomes among patients undergoing endovascular treatment for treatment of an anterior circulation ischemic stroke after 6 hours of symptom onset. Strong evidence of both the safety and efficacy of emergent endovascular treatment when administered to patients with stroke in the anterior circulation is needed.
Source: Journal of Stroke and Cerebrovascular Diseases - October 24, 2012 Category: Neurology Authors: Adnan I. Qureshi, Jefferson T. Miley, Saqib A. Chaudhry, Edouard Semaan, Gustavo J. Rodriguez, M.Fareed K. Suri, Harold P. Adams Tags: Original Articles Source Type: research

Processes of early stroke care and hospital costs
ConclusionsEarly care in agreement with key guidelines recommendations for the management of patients with stroke may be associated with hospital savings.
Source: International Journal of Stroke - December 19, 2013 Category: Neurology Authors: Marie Louise Svendsen, Lars H. Ehlers, Heidi H. Hundborg, Annette Ingeman, Søren P. Johnsen Tags: Research Source Type: research

Alpha 1-Antitrypsin Therapy Mitigated Ischemic Stroke Damage in Rats
Our objective is to develop a new therapy for the treatment of stroke. Currently, the only effective therapy for acute ischemic stroke is the thrombolytic agent recombinant tissue plasminogen activator. α1-Antitrypsin (AAT), a serine proteinase inhibitor with potent anti-inflammatory, anti-apoptotic, antimicrobial, and cytoprotective activities, could be beneficial in stroke. The goal of this study is to test whether AAT can improve ischemic stroke outcome in an established rat model. Middle cerebral artery occlusion was induced in male rats via intracranial (i.c.) microinjection of endothelin-1. Five to 10 minutes after...
Source: Journal of Stroke and Cerebrovascular Diseases - March 3, 2014 Category: Neurology Authors: Huong L. Moldthan, Aaron C. Hirko, Jeffrey S. Thinschmidt, Maria B. Grant, Zhimin Li, Joanna Peris, Yuanqing Lu, Ahmed S. Elshikha, Michael A. King, Jeffrey A. Hughes, Sihong Song Tags: Original Articles Source Type: research

Cervical Arterial Dissections and Association With Cervical Manipulative Therapy: A Statement for Healthcare Professionals From the American Heart Association/American Stroke Association AHA/ASA Scientific Statement
Conclusions— CD is an important cause of ischemic stroke in young and middle-aged patients. CD is most prevalent in the upper cervical spine and can involve the internal carotid artery or vertebral artery. Although current biomechanical evidence is insufficient to establish the claim that CMT causes CD, clinical reports suggest that mechanical forces play a role in a considerable number of CDs and most population controlled studies have found an association between CMT and VAD stroke in young patients. Although the incidence of CMT-associated CD in patients who have previously received CMT is not well established, an...
Source: Stroke - September 22, 2014 Category: Neurology Authors: Biller, J., Sacco, R. L., Albuquerque, F. C., Demaerschalk, B. M., Fayad, P., Long, P. H., Noorollah, L. D., Panagos, P. D., Schievink, W. I., Schwartz, N. E., Shuaib, A., Thaler, D. E., Tirschwell, D. L., on behalf of the American Heart Association Strok Tags: AHA Statements and Guidelines AHA/ASA Scientific Statement Source Type: research

Early Magnetic Resonance Imaging Decreases Hospital Length of Stay in Patients with Ischemic Stroke
Imaging modalities are important part of stroke evaluation. Noncontrast head computed tomography (CT) is the initial imaging modality in acute stroke and although important to rule out acute hemorrhage and making a decision on thrombolytic treatment, ischemic changes may not be visible on CT for up to 24 hours. Magnetic resonance imaging (MRI) brain is an invaluable tool to confirm an ischemic stroke and facilitates stroke evaluation. Objective of this study was to investigate the correlation between time to MRI and length of hospital stay.
Source: Journal of Stroke and Cerebrovascular Diseases - November 3, 2018 Category: Neurology Authors: Bharti Manwani, Subhendu Rath, Nora S. Lee, Ilene Staff, Christoph Stretz, Janhavi Modak, Pasquale F. Finelli Source Type: research

Ischemic Stroke in Evolution: Predictive Value of Perfusion Computed Tomography
Background: Various perfusion computed tomography (PCT) parameters have been used to identify tissue at risk of infarction in the setting of acute stroke. The purpose of this study was to examine predictive value of the PCT parameters commonly used in clinical practice to define ischemic penumbra. The patient selection criterion aimed to exclude the effect of thrombolysis from the imaging data.Methods: Consecutive acute stroke patients were screened and a total of 18 patients who initially underwent PCT and CT angiogram (CTA) on presentation but did not qualify to receive thrombolytic therapy were selected. The PCT images ...
Source: Journal of Stroke and Cerebrovascular Diseases - August 19, 2013 Category: Neurology Authors: Amir Kheradmand, Marc Fisher, David Paydarfar Tags: Original Articles Source Type: research

Advantages of susceptibility‐weighted magnetic resonance sequences in the visualization of intravascular thrombi in acute ischemic stroke
ConclusionsSWAN was more sensitive than T2* in the visualization of SVS in the intracranial arteries during the acute phase of ischemic stroke. Our study shows that the low number of SVS visualized using T2* in previous studies is probably related to a lack of sensitivity of the sequence, rather than to the nature or age of the thrombus. The greater sensitivity of SWAN seems to be linked to the visualization of SVS in cases of small thrombi.
Source: International Journal of Stroke - October 1, 2014 Category: Neurology Authors: R. Allibert, C. Billon Grand, F. Vuillier, F. Cattin, E. Muzard, A. Biondi, T. Moulin, E. Medeiros Tags: Short Report Source Type: research

Imaging of occlusive thrombi in acute ischemic stroke
Thrombi, or clots, often occlude proximal segments of the cerebral arterial circulation in acute ischemic stroke. Thromboembolic occlusion or thrombi superimposed on atherosclerotic plaque are the principal focus of acute stroke therapies such as thrombolysis or thrombectomy. We review the imaging characteristics of thrombi on multimodal computed tomography and magnetic resonance imaging, angiography, and ultrasonography, summarizing recent studies that facilitate therapeutic decision‐making from these noninvasive studies. Information about the location, size, and imaging characteristics can be ascertained using these te...
Source: International Journal of Stroke - December 26, 2014 Category: Neurology Authors: Gregory G. Gasparian, Nerses Sanossian, Mark S. Shiroishi, David S. Liebeskind Tags: Review Source Type: research