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Total 258 results found since Jan 2013.

Learning non-local perfusion textures for high-quality computed tomography perfusion imaging
CONCLUSIONS: The presented NPTN method can obtain high-quality CTP images and estimate high-accuracy CBF map by characterizing more structure details and contrast variants in the CTP image, and outperform the competing methods at low-dose cases.PMID:33910178 | DOI:10.1088/1361-6560/abfc90
Source: Physics in Medicine and Biology - April 28, 2021 Category: Physics Authors: Sui Li Dong Zeng Zhaoying Bian Danyang Li Manman Zhu Jing Huang Jianhua Ma Source Type: research

SuperDTI: Ultrafast DTI and fiber tractography with deep learning
CONCLUSIONS: Our results demonstrate the feasibility of superfast DTI and fiber tractography using deep learning with as few as six DWIs directly, bypassing tensor fitting. Such a significant reduction in scan time may allow the inclusion of DTI into the clinical routine for many potential applications.PMID:34309073 | DOI:10.1002/mrm.28937
Source: Magnetic Resonance in Medicine - July 26, 2021 Category: Radiology Authors: Hongyu Li Zifei Liang Chaoyi Zhang Ruiying Liu Jing Li Weihong Zhang Dong Liang Bowen Shen Xiaoliang Zhang Yulin Ge Jiangyang Zhang Leslie Ying Source Type: research

How Menopause Affects Cholesterol —And How to Manage It
Kelly Officer, 49, eats a vegan diet and shuns most processed foods. So, after a recent routine blood test revealed that she had high cholesterol, “I was shocked and upset,” she says, “since it never has been [high] in the past.” Officer is not alone. As women enter menopause, cholestrol levels jump—by an average of 10-15%, or about 10 to 20 milligrams per deciliter. (A healthy adult cholesterol range is 125-200 milligrams per deciliter, according to the National Library of Medicine.) This change often goes unnoticed amidst physical symptoms and the general busyness of those years. But, says D...
Source: TIME: Health - September 21, 2022 Category: Consumer Health News Authors: Katherine Harmon Courage Tags: Uncategorized freelance healthscienceclimate heart health Source Type: news

How AI Is Changing Medical Imaging to Improve Patient Care
That doctors can peer into the human body without making a single incision once seemed like a miraculous concept. But medical imaging in radiology has come a long way, and the latest artificial intelligence (AI)-driven techniques are going much further: exploiting the massive computing abilities of AI and machine learning to mine body scans for differences that even the human eye can miss. Imaging in medicine now involves sophisticated ways of analyzing every data point to distinguish disease from health and signal from noise. If the first few decades of radiology were about refining the resolution of the pictures taken of...
Source: TIME: Health - November 4, 2022 Category: Consumer Health News Authors: Alice Park and Video by Andrew D. Johnson Tags: Uncategorized Frontiers of Medicine 2022 healthscienceclimate Innovation sponsorshipblock Source Type: news

Cognitive deficits of pure subcortical vascular dementia vs Alzheimer disease: PiB-PET-based study
Conclusions: Patients with PiB(–) SVaD were better at memory but worse at frontal function than patients with PiB(+) AD. The differences in memory/frontal functions observed between the 2 groups, however, could not differentiate all individual data due to some overlap in the cutoff threshold.
Source: Neurology - February 4, 2013 Category: Neurology Authors: Yoon, C. W., Shin, J. S., Kim, H. J., Cho, H., Noh, Y., Kim, G. H., Chin, J. H., Oh, S. J., Kim, J. S., Choe, Y. S., Lee, K.-H., Lee, J.-H., Seo, S. W., Na, D. L. Tags: All Cognitive Disorders/Dementia, Vascular dementia, Cognitive neuropsychology in dementia, Assessment of cognitive disorders/dementia ARTICLE Source Type: research

Test could give two-year warning for Alzheimer's
Conclusion The researchers suggest that Alzheimer's disease can be predicted with an accuracy of 87.5% when thinning of the cortex in the right anterior cingulated gyrus is seen on MRI, alongside test results suggesting problems with recall and recognition. This research does not indicate a new "test", as MRI and psychological testing are standard procedures when investigating the signs and symptoms of dementia. What is novel in this approach is looking at a specific combination of results as a potential way of predicting which people with MCI may develop Alzheimer's disease. While this form of testing would be b...
Source: NHS News Feed - December 9, 2013 Category: Consumer Health News Tags: Neurology Source Type: news

Do No Harm: Stories of Life, Death and Brain Surgery review
Patients see neurosurgeons as gods, but what is the reality? Henry Marsh has written a memoir of startling candourWe go to doctors for help and healing; we don't expect them to make us worse. Most people know the aphorism taught to medical students, attributed to the ancient Greek Hippocrates but timeless in its quiet sanity: "First, do no harm." But many medical treatments do cause harm: learning how to navigate the risks of drug therapies, as well as the catastrophic consequences of botched or inadvised surgical operations, is a big part of why training doctors takes so long. Even the simplest of therapies carries the ri...
Source: Guardian Unlimited Science - March 19, 2014 Category: Science Authors: Gavin Francis Tags: The Guardian Private healthcare Culture Society Reviews Books Neuroscience UK news Hospitals NHS Source Type: news

Cannabis linked to brain differences in the young
Conclusion This study found differences between young recreational cannabis users and non-users in the volume and structure of the nucleus accumbens and amygdala, which have a role in the brain’s reward system, pleasure response, emotion and decision making. However, as this was only a cross sectional study taking one-off brain scans of cannabis users and non-users, it cannot prove that cannabis use was the cause of any of the differences seen. It is not known whether cannabis use could have caused these changes in regular users.   Or conversely whether the cannabis users in this study had this brain structure to sta...
Source: NHS News Feed - April 16, 2014 Category: Consumer Health News Tags: Mental health Neurology Source Type: news

Disassociation of verbal learning and hippocampal volume in type 2 diabetes and major depression
ConclusionsThe relationship between hippocampal volume and performance on the California Verbal Learning Test is decoupled in subjects with type 2 diabetes and major depression and this decoupling may contribute to poor verbal learning and memory performance in this study population. Copyright © 2014 John Wiley & Sons, Ltd.
Source: International Journal of Geriatric Psychiatry - June 12, 2014 Category: Geriatrics Authors: O. Ajilore, M. Lamar, J. Medina, K. Watari, V. Elderkin‐Thompson, A. Kumar Tags: Research Article Source Type: research

Nurses’ fidelity to theory‐based core components when implementing Family Health Conversations – a qualitative inquiry
Background and aimA family systems nursing intervention, Family Health Conversation, has been developed in Sweden by adapting the Calgary Family Assessment and Intervention Models and the Illness Beliefs Model. The intervention has several theoretical assumptions, and one way translate the theory into practice is to identify core components. This may produce higher levels of fidelity to the intervention. Besides information about how to implement an intervention in accordance to how it was developed, evaluating whether it was actually implemented as intended is important. Accordingly, we describe the nurses’ fidelity to ...
Source: Scandinavian Journal of Caring Sciences - September 18, 2014 Category: Nursing Authors: Ulrika Östlund, Britt Bäckström, Viveca Lindh, Karin Sundin, Britt‐Inger Saveman Tags: Methods and Methodologies Source Type: research

Visual scanning training for neglect after stroke with and without a computerized lane tracking dual task - van Kessel ME, Geurts AC, Brouwer WH, Fasotti L.
Neglect patients typically fail to explore the contralesional half-space. During visual scanning training, these patients learn to consciously pay attention to contralesional target stimuli. It has been suggested that combining scanning training with metho...
Source: SafetyLit: All (Unduplicated) - September 25, 2014 Category: Global & Universal Tags: Distraction, Fatigue, Chronobiology, Vigilance, Workload Source Type: news

Contrast-enhanced ultrasound to predict the risk of microembolization during carotid artery stenting
Conclusion Contrast enhancement of the carotid plaque is strongly associated with post-procedural microembolization and for this reason it can be considered a reliable tool for an accurate selection of patients undergoing this endovascular treatment. However, the neurocognitive test scores performed in this study are not enough sensible to appreciate the impact of the neurological injury on the day life activities.
Source: La Radiologia Medica - March 25, 2015 Category: Radiology Source Type: research

No such thing as baby brain, study argues
Conclusion The researchers conclude that although the pregnant women reported memory problems, these did not show up on their tests. However, this does not take into account their pre-pregnancy ability. The women may have performed better before they got pregnant, which is why they are now reporting memory problems. None of these women were tested before they got pregnant, which is the major limitation of the study. The researchers say that because there were a similar number of students in each group, the women in the control group was a good enough representation of how the pregnant women would have performed pre-pregna...
Source: NHS News Feed - April 8, 2015 Category: Consumer Health News Tags: Mental health Neurology Pregnancy/child Source Type: news