Worsening Stroke Symptoms in an 80-Year-Old Man

An 80-year-old man presented to the hospital with new-onset slurred speech and left-sided facial droop. Magnetic resonance imaging scans of the head were visually interpreted to show an acute infarct involving the posterior right frontal lobe. What is your diagnosis?
Source: JAMA Neurology - Category: Neurology Source Type: research

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Abstract Atherosclerosis is a systemic inflammatory disease typified by the development of lipid-rich atheroma (plaques), the rupture of which are a major cause of myocardial infarction and stroke. Anatomical evaluation of the plaque considering only the degree of luminal stenosis overlooks features associated with vulnerable plaques, such as high-risk morphological features or pathophysiology, and hence risks missing vulnerable or ruptured non-stenotic plaques. Consequently, there has been interest in identifying these markers of vulnerability using either magnetic resonance imaging (MRI) for morphology, or posit...
Source: The British Journal of Radiology - Category: Radiology Authors: Tags: Br J Radiol Source Type: research
This study aimed to examine the association between dietary inflammatory index (DII) and LA in patients with ischemic stroke.MethodsPatients with first-ever ischemic stroke were enrolled from two centers. A semi-quantitative food frequency questionnaire (FFQ) was used to evaluate diet contents. The DII score of each patient was calculated based on the reported diet contents. Presence and degree of LA were evaluated with a magnetic resonance imaging (MRI) scan. LA was graded according to Fazekas scale.ResultsOf the 497 enrolled patients, 337 (67.8%) were detected with LA. Patients with LA had a higher DII score (0.23 vs -0.88, P
Source: The Journal of Nutrition, Health and Aging - Category: Nutrition Source Type: research
AbstractMost of the acute ischemic events, such as acute coronary syndromes and stroke, are attributed to vulnerable plaques. These lesions have common histological and pathophysiological features, including inflammatory cell infiltration, neo-angiogenesis, remodelling, haemorrhage predisposition, thin fibrous cap, large lipid core, and micro-calcifications. Early detection of the presence of a plaque prone to rupture could be life-saving for the patient; however, vulnerable plaques usually cause non-haemodynamically significant stenosis, and anatomical imaging techniques often underestimate, or may not even detect, these ...
Source: Annals of Nuclear Medicine - Category: Nuclear Medicine Source Type: research
AbstractSixty-four subacute stroke patients and 55 age-matched healthy controls (HCs) underwent a resting-state functional magnetic resonance imaging scan using an echo-planar imaging sequence and high-resolution sagittal T1-weighted images using a three-dimensional magnetization-prepared rapid gradient echo sequence. Static and dynamic voxel-mirrored homotopic connectivity (VMHC) was computed, respectively. The relationships between the clinical measures, including National Institutes of Health Stroke Scale (NIHSS), illness duration, Fugl-Meyer assessment for upper and lower extremities (FMA-total) and size of lesion volu...
Source: Brain Imaging and Behavior - Category: Neurology Source Type: research
CONCLUSION: Through combining anatomical, metabolic imaging and behavioral studies, our study provides evidence of neuroprotective effects of HT in NAIS. These results are potentially translational to human NAIS. PMID: 32115740 [PubMed - as supplied by publisher]
Source: International Journal of Developmental Neuroscience - Category: Neuroscience Authors: Tags: Int J Dev Neurosci Source Type: research
We report temperature measurements and, finally, demonstrate feasibility in a preliminary in vivo experiment. We provide material properties and electromagnetic simulation performance analysis. This paper presents fully aerosol jet-deposited and functional wireless resonant markers on polymer catheters for use in 3T clinical scanners.
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research
Whole organs are difficult to study in minute detail, as they have to be sliced into extremely thin sections to map out their interior. CT and magnetic resonance imaging help to an extent, but researchers at the Helmholtz Zentrum München, Ludwig...
Source: Medgadget - Category: Medical Devices Authors: Tags: Materials News Radiology Surgery Source Type: blogs
Magnetic resonance imaging (MRI) has revolutionized medicine, but MRI scanners are so demanding that access to them is still a challenge. MRI machines typically require specially built rooms with magnet quench vent pipes, entry systems that check peo...
Source: Medgadget - Category: Medical Devices Authors: Tags: Emergency Medicine Neurology Neurosurgery Radiology Source Type: blogs
Artificial intelligence is making its way into health care, and one of its first stops is making sense of all of those scans that doctors order. Already, studies have shown that AI-based tools can, in some cases, pick out abnormal growths that could be cancerous tumors better than doctors can, mainly because digesting and synthesizing huge volumes of information is what AI does best. In a study published Feb. 14 in Circulation, researchers in the U.K. and the U.S. report that an AI program can reliably predict heart attacks and strokes. Kristopher Knott, a research fellow at the British Heart Foundation, and his team condu...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Artificial Intelligence Heart Disease Source Type: news
Abstract Patients with stroke often exhibit evidence of abnormal functional connectivity (FC). However, whether and how anatomical distance affects FC at rest remains unclear in patients with chronic subcortical stroke. Eighty-six patients with chronic (more than six months post-onset) subcortical stroke (44 left-sided patients and 42 right-sided patients) with different degrees of functional recovery, and 75 matched healthy controls underwent resting-state functional magnetic resonance imaging scanning. Positive functional connectivity strength (FCS) was computed for each voxel in the brain using a data-driven wh...
Source: Brain Research - Category: Neurology Authors: Tags: Brain Res Source Type: research
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