• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

Computed Tomography Imaging Predictors of Intracerebral Hemorrhage Expansion
AbstractPurpose of ReviewHematoma expansion (HE) is strongly associated with poor clinical outcome and is a compelling target for improving outcome after intracerebral hemorrhage (ICH). Non-contrast computed tomography (NCCT) is widely used in clinical practice due to its faster acquisition at the presence of acute stroke. Recently, imaging markers on NCCT are increasingly used for predicting HE. We comprehensively review the current evidence on HE prediction using NCCT and provide a summary for assessment of these markers in future research studies.Recent FindingsPredictors of HE on NCCT have been described in reports of ...
Source: Current Neurology and Neuroscience Reports - March 12, 2021 Category: Neuroscience Source Type: research

3D Deep Neural Network Segmentation of Intracerebral Hemorrhage: Development and Validation for Clinical Trials
AbstractIntracranial hemorrhage (ICH) occurs when a blood vessel ruptures in the brain. This leads to significant morbidity and mortality, the likelihood of which is predicated on the size of the bleeding event. X-ray computed tomography (CT) scans allow clinicians and researchers to qualitatively and quantitatively diagnose hemorrhagic stroke, guide interventions and determine inclusion criteria of patients in clinical trials. There is no currently available open source, validated tool to quickly segment hemorrhage. Using an automated pipeline and 2D and 3D deep neural networks, we show that we can quickly and accurately ...
Source: Neuroinformatics - September 26, 2020 Category: Neuroscience Source Type: research

Imaging of Acute Stroke
This article reviews the current state of imaging for acute ischemic stroke. Protocolized imaging acquisition using computed tomography in conjunction with coordinated stroke care allows for rapid diagnosis and prompt revascularization. Following the initial evidence to support endovascular therapy for large-vessel occlusion, published between 2014 and 2015, there are now guidelines supporting treatment up to 24  hours after time of onset of symptoms. Neuroimaging remains a central component in diagnosing acute stroke and potentially excluding patients from stroke treatment, as outlined in this article.
Source: Radiologic Clinics of North America - October 1, 2019 Category: Radiology Authors: Steven Hetts, Rajkamal Khangura Source Type: research

A “one-stop-shop” 4D CTA protocol using 320-row CT for advanced imaging in acute ischemic stroke: a technical note
AbstractThis technical note describes a novel CT scan protocol that includes a non-enhanced CT, dynamic CTA, and perfusion of the whole brain and CTA of the carotid arteries using a 320-row area detector CT scanner, with a unique contrast injection and acceptable radiation exposure dose in patients presenting with acute ischemic stroke. The acquisition parameters and reconstruction parameters will be discussed including the use of model-based iterative reconstruction (MBIR), time summing (tMIP), and subtraction techniques to optimize the results of this protocol.Key Points• Scanning on a 320-row area detector CT can achi...
Source: European Radiology - August 5, 2019 Category: Radiology Source Type: research