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Total 156 results found since Jan 2013.

Cerebral Venous Thrombosis Mimicking Acute Ischemic Stroke in the Emergency Assessment of Thrombolysis Eligibility: Learning from a Misdiagnosed Case
CONCLUSION: Patients with CVT have a higher risk of thrombolysis-related intracranial hemorrhage than other stroke mimics. A greater focus on noncontrast brain CT and the venous phase of CT angiography help identifying this stroke mimic before thrombolysis.PMID:34841501
Source: Acta Neurologica Taiwanica - November 29, 2021 Category: Neurology Authors: Po-Yu Lin Ying-Chen Chen Yuan-Ting Sun Source Type: research

Machine learning and acute stroke imaging
Conclusions ML in acute ischemic stroke imaging has already made tremendous headway. Additional applications and further integration with clinical care is inevitable. Thus, facility with these approaches is critical for the neurointerventional clinician.
Source: Journal of NeuroInterventional Surgery - January 11, 2023 Category: Neurosurgery Authors: Sheth, S. A., Giancardo, L., Colasurdo, M., Srinivasan, V. M., Niktabe, A., Kan, P. Tags: Neuroimaging Source Type: research

Ctbrain machine learning predicts stroke thrombolysis result
Conclusions This proof-of-concept study shows that machine learning methods applied to acute stroke CT-scans potentially offers automation, and improved performance in SICH prediction following thrombolysis. Larger-scale cohorts, and incorporation of CT perfusion/angiography data, should be tested with such methods.
Source: Journal of Neurology, Neurosurgery and Psychiatry - September 9, 2014 Category: Neurosurgery Authors: Epton, S., Bentley, P., Ganesalingam, J., Dias, A., Mahady, K., Rinne, P., Sharma, P., Halse, O., Mehta, A., Rueckert, D. Tags: Abstracts Source Type: research

Mechanical thrombectomy with the Solitaire stent: is there a learning curve in achieving rapid recanalization times?
Conclusions There is a learning curve involved in the efficient use of the Solitaire stent in endovascular acute stroke therapy. Along with improvements in patient transfer to angiography and improved efficiency with intracranial access, mastering this device contributed significantly towards reducing recanalization times.
Source: Journal of NeuroInterventional Surgery - October 7, 2014 Category: Neurosurgery Authors: Eesa, M., Burns, P. A., Almekhlafi, M. A., Menon, B. K., Wong, J. H., Mitha, A., Morrish, W., Demchuk, A. M., Goyal, M. Tags: Ischemic stroke Source Type: research

DWI Negative Stroke: Learning Points For Imaging In Acute Stroke (P1.037)
CONCLUSIONS: Clinical exam bears more weight than imaging in suspected brainstem infarcts. With the increasing use of DWI as the imaging of choice in acute stroke, DWI negative stroke must be considered in patients who present with classic brain stem infarcts with negative imaging to prevent delay in therapy as these patients may still be a candidate for thrombolysis.Disclosure: Dr. Nalleballe has nothing to disclose. Dr. JADEJA has nothing to disclose. Dr. Bollu has nothing to disclose. Dr. Onteddu has nothing to disclose.
Source: Neurology - April 8, 2015 Category: Neurology Authors: Nalleballe, K., Jadeja, N., Bollu, P., Onteddu, S. Tags: Cerebrovascular Disease and Interventional Neurology: Case Reports Source Type: research

Collateral Automation for Triage in Stroke: Evaluating Automated Scoring of Collaterals in Acute Stroke on Computed Tomography Scans
In conclusion, ­e-CTA provides a real-time and fully automated approach to collateral scoring with the potential to improve consistency of image interpretation and to independently quantify collateral scores even without expert rater input.Cerebrovasc Dis
Source: Cerebrovascular Diseases - June 19, 2019 Category: Neurology Source Type: research

Multiclass machine learning vs. conventional calculators for stroke/CVD risk assessment using carotid plaque predictors with coronary angiography scores as gold standard: a 500 participants study
AbstractMachine learning (ML)-based algorithms for cardiovascular disease (CVD) risk assessment have shown promise in clinical decisions. However, they usually predict binary events using only conventional risk factors. Our overall goal was to develop the “multiclass machine learning (MCML)-based algorithms” (labelled as AtheroEdge 3.0ML) and assess whether considering carotid ultrasound imaging fused with conventional risk factors can provide better CVD/stroke risk prediction than conventional CVD risk calculators (CCVRC). Carotid ultrasound and coronary angiography were performed on 500 participants. Stenosis in the ...
Source: The International Journal of Cardiovascular Imaging - November 12, 2020 Category: Radiology Source Type: research

Added value of systemic inflammation markers in predicting pulmonary infection in stroke patients: A retrospective study by machine learning analysis
This study aimed to develop machine learning (ML)-based predictive models for pulmonary infection. Between January 2008 and April 2021, a retrospective analysis of 1397 stroke patients who had CT angiography from skull to diaphragm (including CT of the chest) within 24 hours of symptom onset. A total of 21 variables were included, and the prediction model of pulmonary infection was established by multiple ML-based algorithms. Risk factors for pulmonary infection were determined by the feature selection method. Area under the curve (AUC) and decision curve analysis were used to determine the model with the best resolut...
Source: Medicine - December 30, 2021 Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research

Blunt traumatic injury of the innominate artery resulting in a stroke – A rare presentation
We present a case of traumatic injury of the innominate artery resulting in an ischemic stroke. Case presentation A 20-year-old gentleman ejected from a two wheeler and run over by a truck presented to us with multiple bleeding facial wounds and severe crush injury of his upper torso. Bedside chest X-ray revealed a widened mediastinum and multiple rib fractures with pneumothoraces bilaterally which were drained with intercostal tubes. An hour into his stay in the ED he developed left hemiparesis. CT brain showed infarcts in right temporo-parietal and occipital regions. CT angiogram of neck vessels revealed an avulsion inj...
Source: Apollo Medicine - October 23, 2014 Category: Journals (General) Source Type: research

An Unusual Cause Of Recurrent Ischemic Stroke: Trousseau's Syndrome From Gastric Cancer (P4.231)
CONCLUSIONS: Trousseau’s Syndrome must be considered in those presenting with recurrent strokes with an otherwise negative embolic work up especially in the elderly and those with cancer risk factors. It must prompt the clinician to look for an associated malignancy.Disclosure: Dr. JADEJA has nothing to disclose. Dr. Johnson has nothing to disclose. Dr. Soetanto has nothing to disclose. Dr. Nalleballe has nothing to disclose. Dr. DeNiro has nothing to disclose. Dr. Qureshi has nothing to disclose. Dr. Graber has received personal compensation for activities with Stemedica Inc., Novocure Inc., and Biogen Idec.
Source: Neurology - April 8, 2015 Category: Neurology Authors: Jadeja, N., Johnson, J., Soetanto, A., Nalleballe, K., DeNiro, L., Qureshi, I., Graber, J. Tags: Neuro-oncology: Paraneoplastic Disorders Source Type: research

Predictors of Successful First-Pass Thrombectomy with a Balloon Guide Catheter: Results of a Decision Tree Analysis
AbstractComplete recanalization after a single retrieval maneuver is an interventional goal in acute ischemic stroke and an independent factor for good clinical outcome. Anatomical biomarkers for predicting clot removal difficulties have not been comprehensively analyzed and await unused. We retrospectively evaluated 200 consecutive patients who suffered acute stroke and occlusion of the anterior circulation and were treated with mechanical thrombectomy through a balloon guide catheter (BGC). The primary objective was to evaluate the influence of carotid tortuosity and BGC positioning on the one-pass Modified Thrombolysis ...
Source: Translational Stroke Research - September 10, 2020 Category: Neurology Source Type: research

LVO stroke patients benefit from going directly to angiography suite
Patients with suspected large vessel occlusion (LVO) stroke can have bette...Read more on AuntMinnie.comRelated Reading: Can radiology AI win with a bad hand? Machine learning helps find vessel occlusions on CTA Algorithm detects LVO stroke on multiphase CTA Will Medicare reimbursement propel radiology AI market? COVID-19 associated with large vessel strokes
Source: AuntMinnie.com Headlines - August 2, 2021 Category: Radiology Source Type: news

Assessing the Relative Value of CT Perfusion Compared to Non-contrast CT and CT Angiography in Prognosticating Reperfusion-Eligible Acute Ischemic Stroke Patients
In the present study we sought to measure the relative statistical value of various multimodal CT protocols at identifying treatment responsiveness in patients being considered for thrombolysis. We used a prospectively collected cohort of acute ischemic stroke patients being assessed for IV-alteplase, who had CT-perfusion (CTP) and CT-angiography (CTA) before a treatment decision. Linear regression and receiver operator characteristic curve analysis were performed to measure the prognostic value of models incorporating each imaging modality. One thousand five hundred and sixty-two sub-4.5 h ischemic stroke patients were in...
Source: Frontiers in Neurology - September 9, 2021 Category: Neurology Source Type: research

Report: reimbursement drives adoption of AI software for stroke
The start in 2020 of Medicare payments for artificial intelligence (AI) softwar...Read more on AuntMinnie.comRelated Reading: CMS renews reimbursements for Viz.ai stroke AI software LVO stroke patients benefit from going directly to angiography suite Can radiology AI win with a bad hand? How can radiologists benefit from AI in 2021? Machine learning helps find vessel occlusions on CTA
Source: AuntMinnie.com Headlines - November 16, 2021 Category: Radiology Source Type: news

Preprocedural determination of an occlusion pathomechanism in endovascular treatment of acute stroke: a machine learning-based decision
CONCLUSIONS: An ML-PM could accurately determine an occlusion pathomechanism with common preprocedural findings. A decision flowchart consisting of the four most influential findings was clinically applicable and superior to single common preprocedural findings for determining an occlusion pathomechanism.PMID:35710314 | DOI:10.1136/neurintsurg-2022-018946
Source: Atherosclerosis - June 16, 2022 Category: Cardiology Authors: Jang-Hyun Baek Byung Moon Kim Dong Joon Kim Ji Hoe Heo Hyo Suk Nam Young Dae Kim Myung Ho Rho Pil-Wook Chung Yu Sam Won Yeongu Chung Source Type: research