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Condition: Dementia
Procedure: Ultrasound

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Total 36 results found since Jan 2013.

Subclinical Vascular Composites Predict Clinical Cardiovascular Disease, Stroke, and Dementia: The Multi-Ethnic Study of Atherosclerosis (MESA)
CONCLUSIONS: Subclinical vascular composites of arteriosclerosis and atherosclerosis may be useful biomarkers to inform the vascular pathways contributing to events of CVD, CHD, stroke, and dementia.PMID:37205504 | PMC:PMC10187443 | DOI:10.1101/2023.05.01.23289364
Source: Atherosclerosis - May 19, 2023 Category: Cardiology Authors: Timothy M Hughes Jordan Tanley Haiying Chen Christopher L Schaich Joseph Yeboah Mark A Espeland Joao A C Lima Bharath Ambale-Venkatesh Erin D Michos Jingzhong Ding Kathleen Hayden Ramon Casanova Suzanne Craft Stephen R Rapp Jos é A Luchsinger Annette L F Source Type: research

Comparison of Parameters for Assessment of Carotid Stiffness and Their Association with Carotid Atherosclerosis in Rural Australian Adults: A Pilot Study
J Clin Med. 2023 Apr 18;12(8):2935. doi: 10.3390/jcm12082935.ABSTRACTCarotid stiffness has been associated with the development and progression of carotid artery disease and is an independent factor for stroke and dementia. There has also been a lack of comparison of different ultrasound-derived carotid stiffness parameters and their association with carotid atherosclerosis. This pilot study aimed to investigate the associations between carotid stiffness parameters (derived via ultrasound echo tracking) and the presence of carotid plaques in Australian rural adults. In cross-sectional analyses, we assessed forty-six subjec...
Source: Atherosclerosis - April 28, 2023 Category: Cardiology Authors: Marjana Petrova Alex Gavino Yujie Li Craig S McLachlan Source Type: research

Fully automatic carotid arterial stiffness assessment from ultrasound videos based on machine learning
This study aims to evaluate the stiffness of the CCA using machine learning (ML) through the features of diameter change ( ΔD) and stiffness parameters. This study was conducted in seven stages: data collection, preprocessing, CCA segmentation, CCA lumen diameter (DCCA) computing during cardiac cycles, denoising signals of DCCA, computational of AS parameters, and stiffness assessment using ML. The 51 videos (with 25  s) of CCA B-mode ultrasound (US) were used and analyzed. Each US video yielded approximately 750 sequential frames spanning about 24 cardiac cycles. Firstly, US preset settings with time gain compensation w...
Source: Australasian Physical and Engineering Sciences in Medicine - February 14, 2023 Category: Biomedical Engineering Source Type: research

Neuropsychological tests and prediction of dementia in association with the degree of carotid stenosis
This study constitutes a cross sectional analysis of the association between cognitive impairment defined by neuropsychological tests and carotid stenosis. The main objective was to compare the results of the Mini-Mental State Examination (MMSE) and Addenbrooke's Cognitive Examination-Revised (ACE-R) with regard to the degree of carotid stenosis. The sample comprised 744 patients who underwent a carotid duplex ultrasound and cognitive function testing (by ACE-R and MMSE). A multivariable analysis of potential confounding factors was completed. The significance of the different number of positive (MMSE ≤ 27, ACE-R ≤ 88)...
Source: Atherosclerosis - January 28, 2023 Category: Cardiology Authors: Ondrej Machaczka David Skoloudik Jana Janoutova Martin Roubec Eva Reiterova Martina Kovalova Anna Zatloukalova Petr Ambroz Vladimir Janout Source Type: research

Detecting the vulnerable carotid plaque: the Carotid Artery Multimodality imaging Prognostic study design
Background Carotid artery disease is highly prevalent and a main cause of ischemic stroke and vascular dementia. There is a paucity of information on predictors of serious vascular events. Besides percentage diameter stenosis, international guidelines also recommend the evaluation of qualitative characteristics of carotid artery disease as a guide to treatment, but with no agreement on which qualitative features to assess. This inadequate knowledge leads to a poor ability to identify patients at risk, dispersion of medical resources, and unproven use of expensive and resource-consuming techniques, such as magnetic reso...
Source: Journal of Cardiovascular Medicine - July 1, 2022 Category: Cardiology Tags: Research articles: Study design Source Type: research

Resistance but not endurance exercise training induces changes in cerebrovascular function in healthy young subjects
CONCLUSIONS: Our findings, which were consistent across multiple domains of cerebrovascular function, suggest that episodic increases in arterial pressure associated with resistance training may increase cerebrovascular resistance. The implications of long-term resistance training on brain health require future study, especially in populations with pre-existing cerebral hypoperfusion and/or hypotension.PMID:34559581 | DOI:10.1152/ajpheart.00230.2021
Source: American Journal of Physiology. Heart and Circulatory Physiology - September 24, 2021 Category: Physiology Authors: Hannah J Thomas Channa E Marsh Louise H Naylor Philip N Ainslie Kurt J Smith Howard H Carter Daniel J Green Source Type: research

Can transcranial Doppler ultrasound be used for screening cerebral small vessel diseases in the community?
Elderly persons harbouring severe white matter hyperintensity (WMH), a radiological manifestation of cerebral small vessel disease (SVD), have an increased risk of dementia, stroke and poor functional outcomes. A simple screening tool will enhance their recruitment into preventive trials for SVD. We explored the clinical utility of the pulsatility index (PI) of the middle cerebral artery (MCA), obtained from transcranial Doppler ultrasound (TCD), in identifying severe WMH among community elderly persons with vascular risk factors.
Source: Journal of the Neurological Sciences - August 28, 2019 Category: Neurology Authors: Candy Kang, Adrian Wong, Jianhui Fu, Xu Qun, Wenyan Liu, Zhaolu Wang, Shi Lin, Pauline Kwan, Eugene Lo, Lisa W.C. Au, Ho Ko, Alexander Y.L. Lau, Thomas W.H. Leung, Jill Abrigo, Winnie C.W. Chu, Vincent C.T. Mok, Bonnie Y.K. Lam Source Type: research

Challenges on the processing of plant-based neuronutraceuticals and functional foods with emerging technologies: extraction, encapsulation and therapeutic applications
Publication date: Available online 24 July 2019Source: Trends in Food Science & TechnologyAuthor(s): Ádina L. Santana, Gabriela A. MacedoAbstractBackgroundNatural neuronutraceuticals and functional foods are provided by antioxidant molecules that inhibits excessive reactive oxygen species in neurons and simultaneous occurrence of brain-related injuries like depression, dementia, and ischemic stroke. The need for efficient, cheap and sustainable techniques to increase the shelf life and bioaccessibility of natural antioxidants for therapeutic application as replacers to synthetic antioxidants is growing.Scope and approachH...
Source: Trends in Food Science and Technology - July 25, 2019 Category: Food Science Source Type: research

Carotid artery plaque detected on ultrasound is associated with impaired cognitive state in the elderly: A population-based study in Wakiso district, Uganda
This study set out to determine the prevalence of abnormal carotid ultrasound findings and their association with cognitive function among the adults ≥60 years in Wakiso district, Uganda in 2018. A total of 210 participants were included. Carotid artery stenosis, presence of plaque, stenosis and intima-media thickness were assessed by ultrasound. Cognitive status was assessed using a Mini Mental State Exam (MMSE) test. The prevalence of plaque was 21.4%. Variables which included; presence of plaque, age, education, gender, marital status, whether participant stayed alone or with someone else, care for self, occupation ...
Source: Journal of Clinical Neuroscience - July 12, 2019 Category: Neuroscience Source Type: research