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Total 3962 results found since Jan 2013.

Relative Mean Transit Time Predicts Subsequent Stroke in Symptomatic Carotid Occlusion
Mean transit time (MTT) measurements to assess cerebral hemodynamics are easily obtained by computed tomography and magnetic resonance imaging. We reviewed hemodynamic and clinical outcome data from the St. Louis Carotid Occlusion Study to determine if increased MTT was associated with an increased risk of stroke in patients with symptomatic complete carotid artery occlusion.
Source: Journal of Stroke and Cerebrovascular Diseases - March 21, 2016 Category: Neurology Authors: Robert L. Grubb, Colin P. Derdeyn, Tom O. Videen, David A. Carpenter, William J. Powers Source Type: research

Predictors of Occult Atrial Fibrillation in One Hundred Seventy-One Patients with Cryptogenic Transient Ischemic Attack and Minor Stroke
Recent randomized studies have shown the potential of prolonged cardiac rhythm monitoring to detect silent paroxysmal atrial fibrillation (PAF) in patients with cryptogenic stroke. Our aim was to identify clinical and magnetic resonance imaging (MRI) factors that predict the detection of PAF during long-duration rhythm cardiac Holter (LDRCH) monitoring.
Source: Journal of Stroke and Cerebrovascular Diseases - August 1, 2016 Category: Neurology Authors: Veronica Sudacevschi, Cathy Bertrand, Marie L. Chadenat, Chlo é Tarnaud, Fernando Pico Source Type: research

Impact of Initial Diffusion-Weighted Imaging Lesion Growth Rate on the Success of Endovascular Reperfusion Therapy Clinical Sciences
Conclusions— Proximal internal carotid artery/M1 occlusion did result into a wide range of IGR within 6 hours after onset. Increasing IGR was associated with a lower rate of favorable outcome after endovascular treatment overall and when a successful recanalization was not achieved.
Source: Stroke - August 21, 2016 Category: Neurology Authors: Olivot, J.-M., Sissani, L., Meseguer, E., Inoue, M., Labreuche, J., Mlynash, M., Amarenco, P., Mazighi, M. Tags: Magnetic Resonance Imaging (MRI), Revascularization, Ischemic Stroke Clinical Sciences Source Type: research

Accuracy of Stroke Diagnosis in Telestroke-Guided Tissue Plasminogen Activator Patients
The objective of the study is to assess the accuracy of final diagnosis in telestroke-guided tissue plasminogen activator (rt-PA) patients compared with bedside evaluation using computed tomography (CT) or magnetic resonance imaging (MRI) as a surrogate for final stroke diagnosis. The overall goal was to determine if telestroke had similar diagnostic accuracy as bedside evaluations in diagnosing rt-PA-treated patients.
Source: Journal of Stroke and Cerebrovascular Diseases - September 1, 2016 Category: Neurology Authors: Kunal Agrawal, Rema Raman, Karin Ernstrom, Robert Joseph Claycomb, Dawn Matherne Meyer, Thomas Martin Hemmen, Royya Fatima Modir, Pranav Kachhi, Brett Cowan Meyer Source Type: research

White Matter Hyperintensity-Adjusted Critical Infarct Thresholds to Predict a Favorable 90-Day Outcome Clinical Sciences
Conclusions— In this proof-of-concept study, the WMH lesion burden impacted the critical outcome-predicting infarct thresholds. If confirmed, using a WMH-adjusted infarct threshold could allow defining patients that have a favorable outcome despite having relatively large infarct volumes.
Source: Stroke - September 25, 2016 Category: Neurology Authors: Patti, J., Helenius, J., Puri, A. S., Henninger, N. Tags: Ischemic Stroke Clinical Sciences Source Type: research

Different Perfusion Patterns in a Patient with Acute Ischemic Stroke
A 29-year-old male patient with aphasia and mild weakness of the right arm arrived at the emergency room 4 hours after symptom onset. The computed tomography perfusion showed a typical delay in the time-based maps in the left occipital lobe and another hyperperfused area in the left frontal lobe. The follow-up magnetic resonance imaging confirmed cortical ischemic lesions in both areas. This case shows that besides hypoperfusion, hyperperfusion can also be found in the first stages of acute stroke, and it is highly suggestive of established ischemic lesions.
Source: Journal of Stroke and Cerebrovascular Diseases - March 9, 2017 Category: Neurology Authors: Salvatore Rudilosso, Carlos Laredo, Xabier Urra, Ángel Chamorro Tags: Case Studies Source Type: research

Feasibility of using magnetic resonance imaging as a screening tool for acute stroke thrombolysis
【Background】Feasibility of performing MRI first for suspected hyperacute stroke patients in real-world practice has not been fully examined. Moreover, most past studies of reducing door-to-needle time (DNT) in intravenous thrombolysis were conducted using CT. The aim of this study was to evaluat e the feasibility of an MRI-first policy and examine the effects of a quality improvement (QI) process for reducing DNT using MRI.
Source: Journal of Stroke and Cerebrovascular Diseases - March 18, 2017 Category: Neurology Authors: Yuki Sakamoto, Seiji Okubo, Satoshi Suda, Arata Abe, Junya Aoki, Kanako Muraga, Takuya Kanamaru, Kentaro Suzuki, Kazumi Kimura Source Type: research

Recurrent Stroke Due to Metastatic Pulmonary Tumor Emboli as an Important Clinical Entity
We present an autopsy case of repetitive stroke due to tumor emboli, indistinguishable from thromboembolism with a hypercoagulable state in its clinical course. A 72-year-old man diagnosed with stage IVA oropharyngeal squamous cell carcinoma received chemoradiotherapy. Follow-up imaging revealed mediastinal lymph nodes and pulmonary metastasis. One year later, the patient experienced right arm weakness, and brain magnetic resonance imaging showed acute ischemic lesions in multiple vascular territories.
Source: Journal of Stroke and Cerebrovascular Diseases - March 30, 2017 Category: Neurology Authors: Junji Takasugi, Manabu Sakaguchi, Naoki Oyama, Yasufumi Gon, Yasukazu Terasaki, Tsutomu Sasaki, Susumu Nakahara, Kenji Ohshima, Yumiko Hori, Eiichi Morii, Hideki Mochizuki Tags: Case Studies Source Type: research

Vascular Anatomy Predicts the Risk of Cerebral Ischemia in Patients Randomized to Carotid Stenting Versus Endarterectomy Clinical Sciences
Background and Purpose—Complex vascular anatomy might increase the risk of procedural stroke during carotid artery stenting (CAS). Randomized controlled trial evidence that vascular anatomy should inform the choice between CAS and carotid endarterectomy (CEA) has been lacking.Methods—One-hundred eighty-four patients with symptomatic internal carotid artery stenosis who were randomly assigned to CAS or CEA in the ICSS (International Carotid Stenting Study) underwent magnetic resonance (n=126) or computed tomographic angiography (n=58) at baseline and brain magnetic resonance imaging before and after treatment. We invest...
Source: Stroke - April 24, 2017 Category: Neurology Authors: Mandy D. Muller, Frank J. Ahlhelm, Alexander von Hessling, David Doig, Paul J. Nederkoorn, Sumaira Macdonald, Philippe A. Lyrer, Aad van der Lugt, Jeroen Hendrikse, Christoph Stippich, H. Bart van der Worp, Toby Richards, Martin M. Brown, Stefan T. Engelt Tags: Magnetic Resonance Imaging (MRI), Revascularization, Stent, Cerebrovascular Disease/Stroke, Stenosis Original Contributions Source Type: research

Age-Specific Sex Differences in Magnetic Resonance Imaging-Depicted Carotid Intraplaque Hemorrhage Clinical Sciences
We report age-specific sex differences in the presence of magnetic resonance imaging-depicted carotid IPH.Methods—Patients (n=1115) underwent magnetic resonance imaging for carotid IPH between 2005 and 2014. Low-grade carotid stenosis patients (n=906) without prior endarterectomy were eligible for this cross-sectional study.Results—Of the 906 patients included (mean age±SD in years, 66.98±15.15), 63 (6.95%) had carotid IPH. In men and women, carotid IPH was present in 11.43% (48 of 420) and 3.09% (15 of 486), respectively (P
Source: Stroke - July 24, 2017 Category: Neurology Authors: Navneet Singh, Alan R. Moody, Bowen Zhang, Isabella Kaminski, Kush Kapur, Stephanie Chiu, Pascal N. Tyrrell Tags: Pathophysiology, Vascular Biology, Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke, Atherosclerosis Original Contributions Source Type: research

An Acute Ischemic Stroke Resulting from Aortic Dissection
A 39-year-old man with syncope and persistent dizziness was sent to stroke emergency. Patient's diffusion magnetic resonance imaging of brain showed acute ischemia in right cerebella and right occipital lobe, thus intravenous recombinant tissue plasminogen activator was given to him. However, the patient behaved rather restless with repeated complaint of back and thoracic pain. Further thorax computed tomography angiography confirmed that the underlying cause turned out to be aortic dissection.
Source: Journal of Stroke and Cerebrovascular Diseases - September 19, 2017 Category: Neurology Authors: Zijun He, Chun-sen Shen, Bin Wang, Yongchun Luo Tags: Case Studies Source Type: research

Radiographic and Clinical Brain Infarcts in Cardiac and Diagnostic Procedures Clinical Sciences
Conclusions—One of 10 people with periprocedural RBIs during cardiac surgeries and invasive vascular diagnostic procedures resulted in strokes or transient ischemic attacks, which may serve as a potential surrogate marker of procedural proficiency and perhaps as a predictor of risk for periprocedural strokes.
Source: Stroke - September 25, 2017 Category: Neurology Authors: Sung-Min Cho, Abhishek Deshpande, Vinay Pasupuleti, Adrian V. Hernandez, Ken Uchino Tags: Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke Original Contributions Source Type: research

Association Between Heart Rate and Subclinical Cerebrovascular Disease in the Elderly Clinical Sciences
Conclusions—In a predominantly elderly cohort, elevated nighttime HR was associated with WMHV, suggesting an independent role of HR in subclinical cerebrovascular disease.
Source: Stroke - January 22, 2018 Category: Neurology Authors: Koki Nakanishi, Zhezhen Jin, Shunichi Homma, Mitchell S.V. Elkind, Tatjana Rundek, Seitetz C. Lee, Aylin Tugcu, Mitsuhiro Yoshita, Charles DeCarli, Clinton B. Wright, Ralph L. Sacco, Marco R. Di Tullio Tags: Risk Factors, Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke Original Contributions Source Type: research

Ischemic Stroke Secondary to Paradoxical Embolism Through a Pulmonary Arteriovenous Malformation: Case Report and Review of the Literature
We report a 32-year-old man who presented with an abrupt onset of right facial weakness and expressive aphasia. Brain magnetic resonance imaging revealed an acute infarct in the left middle cerebral artery territory and chronic infarcts in the bilateral cerebellar hemispheres. A cardioembolic mechanism was initially considered in the setting of perimyocarditis diagnosed a few months earlier.
Source: Journal of Stroke and Cerebrovascular Diseases - April 5, 2018 Category: Neurology Authors: Ryan Cappa, Jeanette Du, Joseph F. Carrera, Jimmy V. Berthaud, Andrew M. Southerland Tags: Case Studies Source Type: research