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MRI for all: Cheap portable scanners aim to revolutionize medical imaging
.news-article__hero--featured .parallax__element{ object-position: 47% 50%; -o-object-position: 47% 50%; } The patient, a man in his 70s with a shock of silver hair, lies in the neuro intensive care unit (neuro ICU) at Yale New Haven Hospital. Looking at him, you’d never know that a few days earlier a tumor was removed from his pituitary gland. The operation didn’t leave a mark because, as is standard, surgeons reached the tumor through his nose. He chats cheerfully with a pair of research associates who have come to check his progress with a new and potentially revolutionary device they are testing. The cylind...
Source: Science of Aging Knowledge Environment - February 23, 2023 Category: Geriatrics Source Type: research

Using convolutional neural network to analyze brain MRI images for predicting functional outcomes of stroke
AbstractNowadays, the physicians usually predict functional outcomes of stroke based on clinical experiences and big data, so we wish to develop a model to accurately identify imaging features for predicting functional outcomes of stroke patients. Using magnetic resonance imaging of ischemic and hemorrhagic stroke patients, we developed and trained a VGG-16 convolutional neural network (CNN) to predict functional outcomes after 28-day hospitalization. A total of 44 individuals (24 men and 20 women) were recruited from Taoyuan General Hospital and China Medical University Hsinchu Hospital to enroll in the study. Based on â€...
Source: Medical and Biological Engineering and Computing - August 2, 2022 Category: Biomedical Engineering Source Type: research

Cerebral arterial fenestration associated with stroke and other cerebrovascular diseases
In this study, we aimed to investigate the imaging characteristics of cerebral fenestrations, the clinical characteristics of fenestrations complicated with cerebrovascular diseases, and the correlation between fenestrations and cerebrovascular diseases. Methods We reviewed the magnetic resonance imaging and computed tomography (CT) imaging findings of patients with cerebrovascular fenestrations in the Third Affiliated Hospital of Soochow University from January 2016 to December 2020, mainly focused on the shape and location of fenestrations. According to the location of fenestrated arteries, patients were divided i...
Source: NeuroReport - October 7, 2021 Category: Neurology Tags: Clinical Neuroscience Source Type: research

Massive Brainstem and Cerebellum Infarction Due to Traumatic Extracranial Vertebral Artery Dissection in a Motor Traffic Accident: An Autopsy Case Report
Traumatic unilateral vertebral artery (VA) injury can cause focal thrombosis and may block the basilar artery which can further lead to ischemic stroke and massive cerebral infarction and subarachnoid hemorrhage and even rapid death. Here, we present an autopsy case with a traumatic extracranial VA dissection in a motor traffic accident, and the identification of cause of death underwent 2 autopsies. A 62-year-old male pedestrian collided with the right rearview mirror of a car and fell down to the ground. He complained pains in the head and neck. Head computed tomography (CT) showed a right linear temporal bone fracture a...
Source: The American Journal of Forensic Medicine and Pathology - May 20, 2021 Category: Forensic Medicine Tags: Case Reports Source Type: research

Anticoagulant management by low-dose of low molecular weight heparin in patients with nonvalvular atrial fibrillation following hemorrhagic transformation and complicated with venous thrombosis: Five case reports and literature review
For patients with nonvalvular atrial fibrillation (NVAF) following hemorrhagic infarction (HI)/hemorrhage transformation (HT) and complicated with venous thrombosis, the management of anticoagulation is controversial. Our study intends to explore the safety and effectiveness of using low-dose of low molecular weight heparin (LMWH) to treat NVAF patients with HI (or HT) and complicated with venous thrombosis. Between January 2018 and January 2019, NVAF related acute ischemic stroke patients with HT/HI, hospitalized in the department of neurology or rehabilitation in our hospital, are enrolled retrospectively. Among them,...
Source: Medicine - February 19, 2021 Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research

Differences between predictive factors for early neurological deterioration due to hemorrhagic and ischemic insults following intravenous recombinant tissue plasminogen activator
AbstractEarly neurological deterioration (END) following intravenous recombinant tissue plasminogen activator (rt-PA) treatment is a serious clinical event that can be caused by hemorrhagic or ischemic insult. We investigated the differences in predictive factors for END due to hemorrhagic and END due to ischemic insults. Consecutive patients from four hospitals who received 0.6  mg/kg intravenous rt-PA for acute ischemic stroke were retrospectively recruited. END was defined as a National Institutes of Health Stroke Scale (NIHSS) score ≥ 4 points within 24 h compared with baseline. END was classified into those du...
Source: Journal of Thrombosis and Thrombolysis - December 16, 2019 Category: Hematology Source Type: research

Modified diffusion-weighted imaging-Alberta Stroke Program Early Computed Tomography Score including deep white matter lesions predicts symptomatic intracerebral hemorrhage following intravenous thrombolysis
AbstractThe Alberta Stroke Program Early Computed Tomography Score (ASPECTS) is widely used for the assessment of early ischemic changes (EICs) before thrombolysis. However, for symptomatic intracerebral hemorrhage (sICH) following intravenous recombinant tissue plasminogen activator (rt-PA), the prediction abilities of CT-ASPECTS, diffusion-weighted imaging (DWI)-ASPECTS, and DWI-ASPECTS including EICs in deep white matter (DWI-ASPECTS  + W) are unclear. We investigated associations between each score and sICH following intravenous rt-PA. Data from consecutive patients who received intravenous rt-PA for acute ischemic...
Source: Journal of Thrombosis and Thrombolysis - November 18, 2019 Category: Hematology Source Type: research

A Genetic Variant of miR-34a Contributes to Susceptibility of Ischemic Stroke Among Chinese Population
This study was supported by National Natural Science Foundation of China (Nos. 81560552, 81260234), Natural Science Foundation of Guangxi Zhuang Autonomous Region (CN) (2017JJA180826), Innovation Project of Guangxi Graduate Education (CN) (201601009) and Key Laboratory Open Project Fund of Guangxi Zhuang Autonomous Region (CN) (kfkt20160064). Conflict of Interest Statement The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Supplementary Material The Supplementary Material for this article can be fou...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Early Magnetic Resonance Imaging Decreases Hospital Length of Stay in Patients with Ischemic Stroke
Imaging modalities are important part of stroke evaluation. Noncontrast head computed tomography (CT) is the initial imaging modality in acute stroke and although important to rule out acute hemorrhage and making a decision on thrombolytic treatment, ischemic changes may not be visible on CT for up to 24 hours. Magnetic resonance imaging (MRI) brain is an invaluable tool to confirm an ischemic stroke and facilitates stroke evaluation. Objective of this study was to investigate the correlation between time to MRI and length of hospital stay.
Source: Journal of Stroke and Cerebrovascular Diseases - November 3, 2018 Category: Neurology Authors: Bharti Manwani, Subhendu Rath, Nora S. Lee, Ilene Staff, Christoph Stretz, Janhavi Modak, Pasquale F. Finelli Source Type: research

A case report on middle cerebral artery aneurysm treated by rapid ventricular pacing: A CARE compliant case report
Rationale: Cerebral aneurysm is a common cause of intracranial hemorrhage, stroke, and death. It is treated with vascular surgeries, such as coil embolism and artery clipping. However, surgery itself is a risk factor that may cause rupture of aneurysm, and leads to irreversible brain damage, and even death. Rapid ventricular pacing (RVP) is a procedure that temporarily lowers blood pressure by increasing heart rate and reducing ventricular filling time. RVP has been widely used to reduce blood vessel tension in many cardiovascular surgeries. Patient concerns: A 46-year-old man came to our hospital with intermittent ri...
Source: Medicine - November 1, 2018 Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research

Metronidazole Induced Encephalopathy Mimicking an Acute Ischemic Stroke Event.
We report a rare case of MIE mimicking an acute ischemic stroke, and hypothesize the relationship between the findings of CTP and that of MRI based on the anatomical connection of the dentate nucleus and the cerebral hemisphere. PMID: 30078820 [PubMed - as supplied by publisher]
Source: Neurologia Medico-Chirurgica - August 7, 2018 Category: Neurosurgery Tags: Neurol Med Chir (Tokyo) Source Type: research

Acute Intracranial and Spinal Subdural Hematoma Associated with Vardenafil
A 28-year-old healthy man was admitted to our hospital because of right-sided headache, vomiting, and lower back pain after the administration of vardenafil. Computed tomography and magnetic resonance imaging of the brain showed a small, right-sided, subdural hematoma. A lumbar magnetic resonance imaging showed a longitudinally extended subdural hematoma. He had no history of trauma. We speculated that vardenafil might have had an association with the bleeding. Several reports have suggested a relationship between phosphodiesterase-5 inhibitors and intracerebral or subarachnoid hemorrhage.
Source: Journal of Stroke and Cerebrovascular Diseases - May 2, 2018 Category: Neurology Authors: Takaaki Nakamura, Genya Watanabe, Ryuhei Harada, Emiko Kawasaki, Kenichi Tsukita, Yasushi Suzuki Tags: Case Studies Source Type: research

Association between leukoaraiosis and hemorrhagic transformation after cardioembolic stroke due to atrial fibrillation and/or rheumatic heart disease
Cardioembolic stroke due to atrial fibrillation (AF) and/or rheumatic heart disease (RHD) often involves hemorrhagic transformation (HT), and we examined whether leukoaraiosis (LA) was associated with HT in these cases. We prospectively enrolled 251 patients who were admitted to two hospitals within one month of experiencing cardioembolic stroke due to AF/RHD. LA severity was assessed using three visual rating scales. HT was identified in 99 patients (39.4%) based on baseline computed tomography (CT) and post-admission magnetic resonance imaging or second CT.
Source: Journal of the Neurological Sciences - May 2, 2017 Category: Neurology Authors: Chen-Chen Wei, Shu-Ting Zhang, Yun-Han Wang, Jun-Feng Liu, Jie Li, Ruo-Zhen Yuan, Ge Tan, Shi-Hong Zhang, Ming Liu Source Type: research

What Causes Hyperammonemia?
Discussion Reye’s syndrome (RS)is named for Dr. Douglas Reye who along with Drs. G. Morgan and J. Baral described encephalopathy and fatty accumulation and degeneration in children in a 1963 Lancet article. RS usually affects children but can occur at all ages. All organs can be affected but the liver and brain are primarily affected causing liver failure and encephalopathy as toxic metabolites (especially ammonia) accumulate, and intracranial hypertension and cerebral edema occurs. As the ammonia levels begin to rise (> 100 mg/dL) patients lose their appetite, have nausea and emesis and mental status changes whic...
Source: PediatricEducation.org - February 20, 2017 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news

Combining transcranial ultrasound with intelligent communication methods to enhance the remote assessment and management of stroke patients: Framework for a technology demonstrator
With over 150,000 strokes in the United Kingdom every year, and more than 1 million living survivors, stroke is the third most common cause of death and the leading cause of severe physical disability among adults. A major challenge in administering timely treatment is determining whether the stroke is due to vascular blockage (ischaemic) or haemorrhage. For patients with ischaemic stroke, thrombolysis (i.e. pharmacological ‘clot-busting’) can improve outcomes when delivered swiftly after onset, and current National Health Service Quality Improvement Scotland guidelines are for thrombolytic therapy to be provid...
Source: Health Informatics Journal - August 8, 2016 Category: Information Technology Authors: Mort, A., Eadie, L., Regan, L., Macaden, A., Heaney, D., Bouamrane, M.-M., Rushworth, G., Wilson, P. Tags: Articles Source Type: research

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