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Specialty: Neurology
Procedure: Perfusion

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Total 1377 results found since Jan 2013.

Response to the letter to the editor by Yun Liao
Thank you for informing us of the interest in our manuscript, Endovascular Thrombectomy Reduces Risk of Poor Functional Outcomes in Patients Presenting within 0 –6 h with Large Ischemic Core Volumes on Computed Tomography Perfusion.1 We appreciate the opportunity to respond to the issues raised by Dr. Yun Liao.
Source: Journal of Stroke and Cerebrovascular Diseases - September 15, 2022 Category: Neurology Tags: Letter to the Editor Source Type: research

Evaluation of collateral status and outcome in patients with middle cerebral artery stenosis in late time window by CT perfusion imaging
ConclusionsIn late time window stroke patients, the CBV and CBF ratio on CTP may be valuable parameters for quantitatively revealing the collateral status after stroke. In addition, the CBV ratio was the predictor of clinical outcomes in patients with MCA severe stenosis or occlusion.
Source: Frontiers in Neurology - September 13, 2022 Category: Neurology Source Type: research

Image level detection of large vessel occlusion on 4D-CTA perfusion data using deep learning in acute stroke
Acute ischemic stroke (AIS) secondary to LVOs represent approximately 30-40% of all stroke cases and are associated with disproportionately higher morbidity and mortality.1, 2 The importance of endovascular thrombectomy (EVT) in patients with acute ischemic stroke (AIS) has been well established in multiple randomized controlled trials for patients in both early and late stroke windows.3-6 A critical aspect of the patient triage is the accurate and timely detection of underlying large vessel occlusion (LVO).
Source: Journal of Stroke and Cerebrovascular Diseases - September 10, 2022 Category: Neurology Authors: Girish Bathla, Dhruba Durjoy, Sarv Priya, Edgar Samaniego, Colin P. Derdeyn Source Type: research

An unusual neurological presentation in a patient with primary hypereosinophilic syndrome
Hypereosinophilic syndromes are characterized by an increased number of blood eosinophils (usually more than 1.5  × 109) infiltrating tissues and causing organ damage through over-production of pro-inflammatory cytokines with heterogeneous clinical presentation. Here we present a case of a 47 years old male, with an unremarkable previous medical history, with a sudden onset of subungual hemorrhage and low b ack pain. Admitted for right arm weakness and vomiting, was raised the suspicion of acute cerebrovascular syndrome, but a brain CT scan with angiogram and perfusion sequences did not show any signs of early ischaemic...
Source: Journal of Stroke and Cerebrovascular Diseases - September 5, 2022 Category: Neurology Authors: E. Spina, G.T. Maniscalco, A. Petraroli, A. Detoraki, G. Servillo, A. Ranieri, A. De Mase, R. Renna, P. Candelaresi, A. De Paulis, V. Andreone Tags: Case Report Source Type: research

Which is responsible for aphasia by subcortical lesions? Subcortical lesions or the cortical hypoperfusion?
This study showed that aphasia to be more common in cases with cortical hypoperfusion in the dominant hemisphere than in cases without hypoperfusion. Our results provide evidence that direct effect of the lesion in the basal ganglia on the development of aphasia is doubtful.PMID:35984244 | DOI:10.1080/01616412.2022.2112369
Source: Neurological Research - August 19, 2022 Category: Neurology Authors: Ulufer Celebi Mehmet Fevzi Oztekin Nuriye Ozlem Kucuk Source Type: research

The Role of Neutrophil Extracellular Traps in Early Microthrombosis and Brain Injury After Subarachnoid Hemorrhage in Mice
In conclusion, NETs are associated with early microthrombosis after SAH; they may be a novel therapeutic target for early brain injury (EBI) after SAH.
Source: Translational Stroke Research - August 13, 2022 Category: Neurology Source Type: research

Synthetic role of miR-411-5p and CT perfusion information in predicting clinical outcomes after thrombolysis in acute cerebral infarction
ConclusionmiR-411-5p is increased by thrombolytic therapy in ACI patients, and miR-411-5p, CBF and CBV may serve as independent biomarkers for predicting short- and long-term prognosis following intravenous thrombolysis in ACI patients.
Source: Acta Neurologica Belgica - August 6, 2022 Category: Neurology Source Type: research

Arterial Spin Labeling Imaging Characteristics of Anti-leucine-rich Glioma-Inactivated 1 Encephalitis: A Qualitative and Quantitative Analysis
DiscussionIn this preliminary study of six patients, we demonstrate an ASL hyperperfusion pattern, with a possible predilection for the right mesial temporal lobe on both qualitative and quantitative assessments in patients with seropositive LGI1. Larger scale studies are necessary to further characterize the strength of these associations.
Source: Frontiers in Neurology - July 28, 2022 Category: Neurology Source Type: research

Collateral-Core Ratio as a Novel Predictor of Clinical Outcomes in Acute Ischemic Stroke
AbstractThe interaction effect between collateral circulation and ischemic core size on stroke outcomes has been highlighted in acute ischemic stroke (AIS). However, biomarkers that assess the magnitude of this interaction are still lacking. We aimed to present a new imaging marker, the collateral-core ratio (CCR), to quantify the interaction effect between these factors and evaluate its ability to predict functional outcomes using machine learning (ML) in AIS. Patients with AIS caused by anterior circulation large vessel occlusion (LVO) were recruited from a prospective multicenter study. CCR was calculated as collateral ...
Source: Translational Stroke Research - July 25, 2022 Category: Neurology Source Type: research

Application of quantitative EEG in acute ischemic stroke patients who underwent thrombectomy: A comparison with CT perfusion
CONCLUSIONS: QEEG indices may have a certain predictive value for the outcome of AIS patients who underwent MT.SIGNIFICANCE: QEEG may become a new prognostic tool in AIS patients who underwent MT, facilitating the planning and management of related rehabilitation plans.PMID:35809546 | DOI:10.1016/j.clinph.2022.06.007
Source: Clinical Neurophysiology - July 9, 2022 Category: Neurology Authors: Na Zhang Fangmei Chen Xufang Xie Zunchun Xie Daojun Hong Jun Li Taohui Ouyang Source Type: research

Ischemic Lesion Growth in Patients with a  Persistent Target Mismatch After Large Vessel Occlusion
ConclusionMultiple patients were identified with limited core growth and large penumbra (persistent target mismatch)>  16 h after stroke onset, likely due to more favorable collateral flow.
Source: Clinical Neuroradiology - July 5, 2022 Category: Neurology Source Type: research

Three Dimensional-Arterial Spin Labeling Evaluation of Improved Cerebral Perfusion After Limb Remote Ischemic Preconditioning in a Rat Model of Focal Ischemic Stroke
ConclusionThree dimensional (3D) ASL can be used to evaluate LRP to improve stroke perfusion, and its protective effect may be closely related to LRP-induced vascular regeneration.
Source: Frontiers in Neuroanatomy - June 30, 2022 Category: Neurology Source Type: research