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Condition: Stroke
Procedure: CT Scan

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Total 6418 results found since Jan 2013.

Effects of Low-Frequency Repetitive Transcranial Magnetic Stimulation Combined with Intensive Speech Therapy on Cerebral Blood Flow in Post-Stroke Aphasia
Abstract We provided an intervention to chronic post-stroke aphasic patients using low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) guided by a functional magnetic resonance imaging (fMRI) evaluation of language laterality, combined with intensive speech therapy (ST). We performed a single photon emission-computed tomography (SPECT) scan pre- and post-intervention and investigated the relationship between cerebral blood flow (CBF) and language function. Fifty right-handed chronic post-stroke aphasic patients were enrolled in the study. During their 11-day hospital admission, the patients receiv...
Source: Translational Stroke Research - August 7, 2015 Category: Neurology Source Type: research

Thrombolysis, Complete Recanalization, Diffusion Reversal, and Luxury Perfusion in Hyperacute Stroke
A 59-year old man was admitted to our stroke care unit 1.8 hours after onset of cardioembolic stroke. Administration of issue-plasminogen activator achieved complete recanalization, and his lesion on diffusion-weighted imaging (DWI) disappeared and single photon emission computed tomography showed luxury perfusion. DWI reversal and luxury perfusion were sometimes observed in hyperacute stroke patients, especially timely reperfusion was achieved. However, the relationships between DWI reversal and luxury perfusion were not well known.
Source: Journal of Stroke and Cerebrovascular Diseases - October 28, 2015 Category: Neurology Authors: Yuki Sakamoto, Takahiro Ouchi, Seiji Okubo, Arata Abe, Junya Aoki, Akane Nogami, Takahiro Sato, Hiroyuki Hokama, Yutaro Ogawa, Shizuka Suzuki, Masahiro Mishina, Kazumi Kimura Tags: Case Report 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

Association Between Time to Reperfusion and Outcome Is Primarily Driven by the Time From Imaging to Reperfusion Clinical Sciences
Conclusions— Time to reperfusion is negatively associated with favorable outcome, being CT to reperfusion, as opposed to onset to CT, the main determinant of this association. In addition, OTR was strongly associated to outcome in patients with low ASPECTS scores but not in patients with high ASPECTS scores. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT01692379.
Source: Stroke - March 27, 2016 Category: Neurology Authors: Ribo, M., Molina, C. A., Cobo, E., Cerda, N., Tomasello, A., Quesada, H., De Miquel, M. A., Millan, M., Castano, C., Urra, X., Sanroman, L., Davalos, A., Jovin, T., for the REVASCAT Trial Investigators, Sanjuan, Rubiera, Pagola, Flores, Muchada, Meler, Hu Tags: Cerebrovascular Procedures, Ischemic Stroke Clinical Sciences 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

Cerebral Microbleeds and Cortical Superficial Siderosis in Patients Presenting With Minor Cerebrovascular Events Clinical Sciences
Conclusions— CMBs in TIA and minor stroke are moderately common but do not predict recurrence or 90-day outcome. CAA-related transient focal neurological episodes and TIA have overlapping clinical symptoms, suggesting that MRI may be needed for differentiation.
Source: Stroke - August 21, 2016 Category: Neurology Authors: Zerna, C., Modi, J., Bilston, L., Shoamanesh, A., Coutts, S. B., Smith, E. E. Tags: Ischemic Stroke, Transient Ischemic Attack (TIA) Clinical Sciences Source Type: research

Visual Determination of Conjugate Eye Deviation on Computed Tomography Scan Predicts Diagnosis of Stroke Code Patients
Head computed tomography (CT) is critical for stroke code evaluations and often happens prior to completion of the neurological exam. Eye deviation on neuroimaging (DeyeCOM sign) has utility for predicting stroke diagnosis and correlates with National Institutes of Health Stroke Scale (NIHSS) gaze score. We further assessed the utility of the DeyeCOM sign, without complex caliper-based eye deviation calculations, but simply with a visual determination method.
Source: Journal of Stroke and Cerebrovascular Diseases - August 26, 2016 Category: Neurology Authors: Ilana Spokoyny, James Y. Chen, Rema Raman, Karin Ernstrom, Kunal Agrawal, Royya F. Modir, Dawn M. Meyer, Brett C. Meyer Source Type: research

Distinction between contrast staining and hemorrhage after endovascular stroke treatment: one CT is not enough
Conclusions There are no density thresholds for PCHDs that allow predicting the absence or presence of hemorrhage with 100% specificity and acceptable sensitivity. A CT scan performed at least 19–24 h after endovascular therapy is the only reliable method to differentiate contrast staining from hemorrhage.
Source: Journal of NeuroInterventional Surgery - March 15, 2017 Category: Neurosurgery Authors: Dekeyzer, S., Nikoubashman, O., Lutin, B., De Groote, J., Vancaester, E., De Blauwe, S., Hemelsoet, D., Wiesmann, M., Defreyne, L. Tags: Ischemic stroke Source Type: research

Long-Term Impact of Implementation of a Stroke Protocol on Door-to-Needle Time in the Administration of Intravenous Tissue Plasminogen Activator
This study aims to evaluate the effectiveness of implementing a stroke protocol (SP) in improving door-to-needle time (DTNT) and door-to-computed tomography (DTCT) time from 2010 to 2014. Published data from the Get With The Guidelines-Stroke (GWTGS) participating hospitals showed that median DTNT  = 75 minutes with 26.6% of the patients achieving the recommended DTNT of 60 minutes or less. Implementation of an SP, which specifies the role of nurses, physicians, and technicians during acute stroke evaluation, can improve DTNT.
Source: Journal of Stroke and Cerebrovascular Diseases - April 11, 2017 Category: Neurology Authors: Machteld E. Hillen, Wenzhuan He, Zaid Al-Qudah, Weizhen Wang, Andrea Hidalgo, Jessy Walia Source Type: research

Differentiating Stroke and Seizure in Acute Setting —Perfusion Computed Tomography?
Perfusion computed tomography (PCT) is part of acute stroke protocol in many hospitals; however, its clinical utility is still being disputed. Beyond its use in core and penumbra estimation, there is also a question about PCT role in stroke mimics diagnosis. Case series or small, retrospective studies showed equivocal results. This is the first published prospective, comparative study on PCT in differentiating stroke and seizure in acute setting.
Source: Journal of Stroke and Cerebrovascular Diseases - April 13, 2017 Category: Neurology Authors: Katarzyna Kubiak-Balcerewicz, Urszula Fiszer, Ewa Naga ńska, Cezary Siemianowski, Aleksander Sobieszek, Agnieszka Witak-Grzybowska, Aldona Kosińska-Szot Source Type: research

Reliability and Utility of the Alberta Stroke Program Early Computed Tomography Score in Hyperacute Stroke
The Alberta Stroke Program Early Computed Tomography Score (ASPECTS) on non-contrast computed tomography (NCCT) is dependent on the visibility of early ischemic change. The goal of our study was to evaluate whether time from ischemic stroke onset to initial NCCT influences the inter-rater variability and prognostic accuracy of ASPECTS for a 3-month functional outcome.
Source: Journal of Stroke and Cerebrovascular Diseases - June 24, 2017 Category: Neurology Authors: Jillian Naylor, Leonid Churilov, Neil Rane, Ziyuan Chen, Bruce C.V. Campbell, Bernard Yan Source Type: research

Impact of ASPECT scores and infarct distribution on outcomes among patients undergoing thrombectomy for acute ischemic stroke with the ADAPT technique
Conclusions Patients with moderate-sized core infarcts involving various distributions in either hemisphere can potentially achieve similar good outcomes compared with those with no core infarction at presentation. A treatment algorithm for acute ischemic stroke, which employs hardline ASPECTS thresholds or excludes patients with basal ganglia infarcts, might preclude patients who would potentially benefit from mechanical thrombectomy with ADAPT.
Source: Journal of NeuroInterventional Surgery - August 17, 2017 Category: Neurosurgery Authors: Hungerford, J. P., Hyer, M., Turk, A. S., Turner, R. D., Chaudry, M. I., Fargen, K. M., Spiotta, A. M. Tags: Ischemic stroke Source Type: research

Vulnerability to Infarction During Cerebral Ischemia in Migraine Sufferers Clinical Sciences
Conclusions—Migraine is likely to increase individual vulnerability to ischemic stroke during the process of acute brain ischemia and might represent, therefore, a potential new therapeutic target against occurrence and progression of the ischemic damage.
Source: Stroke - February 26, 2018 Category: Neurology Authors: Alessandro Pezzini, Giorgio Busto, Marialuisa Zedde, Massimo Gamba, Andrea Zini, Loris Poli, Filomena Caria, Valeria De Giuli, Anna Maria Simone, Rosario Pascarella, Alessandro Padovani, Marina Padroni, Roberto Gasparotti, Stefano Colagrande, Enrico Faina Tags: Epidemiology, Risk Factors, Cerebrovascular Disease/Stroke, Ischemic Stroke, Vascular Disease Original Contributions Source Type: research

Quantifying Infarct Growth and Secondary Injury Volumes Clinical Sciences
Conclusions—The contributions of IG and AD to lesion expansion can be measured separately over time through the use of image registration. This approach can be used to combine imaging outcome data from computed tomography and MRI.
Source: Stroke - June 25, 2018 Category: Neurology Authors: George W.J. Harston, Davide Carone, Fintan Sheerin, Mark Jenkinson, James Kennedy Tags: Imaging, Ischemic Stroke Original Contributions Source Type: research

Spinal epidural hematoma as a stroke mimic
Spinal epidural hematoma is a rare disease with an annual incidence of 1 per 1,000,000 individuals;1 however, it is a critical stroke mimic.2 As patients with spinal epidural hematoma typically present with acute hemiparesis,3,4 such a presentation is not expected to be detected by a computed tomography (CT) scan of the brain, which is the most common neuroimaging choice in patients with an activated stroke code. Indeed, there are several case reports in which patients with spinal epidural hematoma were misdiagnosed with ischemic stroke and treated with anti-thrombotic therapy, including intravenous thrombolysis,5 –10 oc...
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Yuichiro Inatomi, Makoto Nakajima, Toshiro Yonehara Source Type: research