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Total 2908 results found since Jan 2013.

Heparin during endovascular stroke treatment seems safe Heparin during endovascular stroke treatment does not ameliorate clinical outcome and is associated with lower chance of reperfusion
Conclusions: heparin use during mechanical thrombectomy for anterior circulation acute ischemic stroke in a realworld setting is safe.
Source: Journal of Neuroradiology - February 15, 2019 Category: Radiology Source Type: research

First-line contact aspiration vs stent-retriever thrombectomy in acute ischemic stroke patients with large-artery occlusion in the anterior circulation: Systematic review and meta-analysis.
CONCLUSIONS: Current data suggest no difference in efficacy and safety between first-line contact aspiration and stent-retriever thrombectomy in stroke patients with large-artery occlusion. PMID: 30864466 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - March 14, 2019 Category: Radiology Tags: Interv Neuroradiol Source Type: research

SIR: Stroke treatment training program improves outcomes
Interventional radiologists at Johns Hopkins University have developed an innovative...Read more on AuntMinnie.comRelated Reading: MRI measurements of iron content show impact of stroke CT matches MRI for late-window stroke evaluation Machine learning can predict stroke treatment outcomes Study reveals steep cost of delaying stroke treatment MRI links lifestyle factors to stroke, dementia risk
Source: AuntMinnie.com Headlines - March 25, 2019 Category: Radiology Source Type: news

Predictors of response to endovascular treatment of posterior circulation stroke
ConclusionsPretreatment determination of the presence or absence of intracranial atherosclerosis can aid management of posterior circulation stroke patients. The absence of intracranial atherosclerosis may have value as a positive selection criterion for endovascular treatment in future trials. The presence of intracranial atherosclerosis could be used as a selection tool in future studies investigating new treatment protocols for this population.
Source: European Journal of Radiology - May 3, 2019 Category: Radiology Source Type: research

Functional connectivity of language networks after perinatal stroke
We examined functional connectivity (FC) of language networks in children with arterial and venous perinatal stroke and typically developing controls (TDC) in a population-based, controlled, cohort study. Resting state functional MRI was performed at 3 T (TR/TE = 2000/30 ms, 150 volumes, 3.6mm3 voxels). Seed-based analyses used bilateral inferior frontal and superior temporal gyri. A subset of stroke participants completed clinical language testing.Sixty-six children participated (median age: 12.85±3.8y, range 6–19; arterial N = 17; venous N = 15; TDC N = 34]. Children with left hemisphere strokes ha...
Source: NeuroImage: Clinical - May 22, 2019 Category: Radiology Source Type: research

A Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot Study ADULT BRAIN
CONCLUSIONS: We demonstrated that the dynamic signals of dynamic contrast-enhanced MRA could be used to generate multiphase collateral images and showed the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Source: American Journal of Neuroradiology - June 11, 2019 Category: Radiology Authors: Roh, H. G., Kim, E. Y., Kim, I. S., Lee, H. J., Park, J. J., Lee, S. B., Choi, J. W., Jeon, Y. S., Park, M., Kim, S. U., Kim, H. J. Tags: ADULT BRAIN Source Type: research

Perfusion CT for prediction of hemorrhagic transformation in acute ischemic stroke: a systematic review and meta-analysis
ConclusionAlthough various perfusion CT parameters have been used across studies, the current evidence supports the use of perfusion CT to predict hemorrhagic transformation in acute ischemic stroke.Key Points•High blood-brain barrier permeability and hypoperfusion status derived from perfusion CT were associated with hemorrhagic transformation.•Perfusion CT has moderate diagnostic performance for the prediction of hemorrhagic transformation in acute ischemic stroke.•The pooled sensitivity was 84%, and the pooled specificity was 74%.
Source: European Radiology - July 3, 2019 Category: Radiology Source Type: research

Diverse Functional Connectivity Patterns of Resting-State Brain Networks Associated with Good and Poor Hand Outcomes Following Stroke
Publication date: Available online 20 November 2019Source: NeuroImage: ClinicalAuthor(s): Wenjun Hong, Qixiang Lin, Zaixu Cui, Feiwen Liu, Rong Xu, Chaozheng TangAbstractMotor stroke has been characterized by disruptions in multiple large-scale functional brain networks. However, it remains unclear whether stroke patients with good hand outcomes show different connectivity profiles within and between networks from those with poor hand outcomes. In this cross-sectional study, we recruited 52 chronic subcortical stroke patients [illness duration (mean ± SD): 16 ± 16.2 months] and 52 healthy controls from the local hospital...
Source: NeuroImage: Clinical - November 20, 2019 Category: Radiology Source Type: research

A multi-path 2.5 dimensional convolutional neural network system for segmenting stroke lesions in brain MRI images
Publication date: Available online 9 December 2019Source: NeuroImage: ClinicalAuthor(s): Yunzhe Xue, Fadi G. Farhat, Olga Boukrina, A.M. Barrett, Jeffrey R. Binder, Usman W. Roshan, William W. GravesAbstractAutomatic identification of brain lesions from magnetic resonance imaging (MRI) scans of stroke survivors would be a useful aid in patient diagnosis and treatment planning. It would also greatly facilitate the study of brain-behavior relationships by eliminating the laborious step of having a human expert manually segment the lesion on each brain scan. We propose a multi-modal multi-path convolutional neural network sys...
Source: NeuroImage: Clinical - December 11, 2019 Category: Radiology Source Type: research

Association of local anesthesia versus conscious sedation with functional outcome of acute ischemic stroke patients undergoing embolectomy.
CONCLUSION: Functional outcome of acute ischemic stroke patients undergoing embolectomy appears to be similar for patients receiving local anesthesia and conscious sedation. This similarity may be beneficial to a future study comparing general anesthesia to local anesthesia and conscious sedation. The use of local anesthesia or conscious sedation does not significantly impact hemodynamic status. PMID: 32375517 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - May 9, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Population health impact of extended window thrombectomy in acute ischemic stroke.
CONCLUSION: Extended window EVT with DEFUSE-3 and DAWN criteria increases EVT volume and modestly improves population-level clinical outcomes. PMID: 33153379 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - November 11, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Use of intravenous cangrelor and stenting in acute ischemic stroke interventions: a new single center analysis and pooled-analysis of current studies
CONCLUSIONS: IV cangrelor during acute ischemic stroke intervention appears to be safe, with a symptomatic intracranial hemorrhage rate of 6.2%. More research is needed to determine the ideal dosing regimen.PMID:33945341 | DOI:10.1177/15910199211014417
Source: Interventional Neuroradiology - May 4, 2021 Category: Radiology Authors: Alexandra R Paul Pouya Entezami Devin Holden Nicholas Field John Dalfino Alan Boulos Source Type: research

Improving Ischemic Stroke Care With MRI and Deep Learning Artificial Intelligence
Advanced magnetic resonance imaging has been used as selection criteria for both acute ischemic stroke treatment and secondary prevention. The use of artificial intelligence, and in particular, deep learning, to synthesize large amounts of data and to understand better how clinical and imaging data can be leveraged to improve stroke care promises a new era of stroke care. In this article, we review common deep learning model structures for stroke imaging, evaluation metrics for model performance, and studies that investigated deep learning application in acute ischemic stroke care and secondary prevention.
Source: Topics in Magnetic Resonance Imaging - August 1, 2021 Category: Radiology Tags: Review Articles Source Type: research

A Web-based System to Assist With Etiology Differential Diagnosis in Children With Arterial Ischemic Stroke
Conclusions: Our tool yielded an overlapping differential diagnosis in most patients that defied definitive classification by experts. Although it needs to be validated in an independent cohort, it helps facilitate high-quality, and timely diagnoses of arteriopathy in pediatric patients.
Source: Topics in Magnetic Resonance Imaging - October 1, 2021 Category: Radiology Tags: Review Articles Source Type: research

Percutaneous transluminal angioplasty and stenting in acute stroke caused by basilar artery steno-occlusive disease: The experience of a single stroke centre
CONCLUSIONS: Percutaneous transluminal angioplasty and stenting showed to be a technically feasible and reasonably safe procedure in selected patients. However, good clinical outcomes may be difficult to achieve as only 43.5% of the patients remained independent at 3 months. Randomized studies are needed to confirm the efficacy and safety outcomes of percutaneous transluminal angioplasty and stenting in acute stroke caused by basilar artery steno-occlusive disease.PMID:34704502 | DOI:10.1177/15910199211051830
Source: Interventional Neuroradiology - October 27, 2021 Category: Radiology Authors: Manuel Machado Gon çalo Borges de Almeida Marta Sequeira Filipa Pedro Alberto Fior Rui Carvalho Isabel Fragata Jo ão Reis Ana Paiva Nunes Source Type: research