Search for: "fMRI" - 36 articles found

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7 Tesla

Siemens Healthineers – Magnetom Terra

Gradient: 45 mT / m1Slewrate: 200 T / m / s1Channels: Up to 102 × 321 Maximum gradient amplitude and slewrate can be applied simultaneouslyHighlights• World’s first 7T MRI scanner released for clinical use• Dual Mode – secure switch between research and clinical operation*• 50 percent lighter 7T magnet technology** for easier integration into clinical…

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Sponsored • Fully synchronised group measuring

Bittium – NeurOne

‘Bittium NeurOne is one of the quickest and most accurate EEG measuring devices in the world designed for clinical and research use,’ the manufacturer reports. ‘Bittium NeurOne system enables fully synchronised group measuring of up to 30 people simultaneously, for example in different types of psychological studies. ‘The solution is optimised for use with transcranial magnetic…

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News • Trimodal approach

Combining 3 techniques to boost brain-imaging precision

Researchers report that they have developed a method to combine three brain-imaging techniques to more precisely capture the timing and location of brain responses to a stimulus. Their study is the first to combine the three widely used technologies for simultaneous imaging of brain activity. The work is reported in the journal Human Brain Mapping. The new "trimodal" approach combines…

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Article • The role of chest CT in diagnosis and treatment

UPDATE: Covid-19 and lung infections imaging

RSNA 2020: International experts showcased new studies on chest CT’s role in Covid-19 diagnosis and treatment. A staggering volume of work and has been produced on the pandemic this year, with an average 367 Covid-19 journal articles published per week, according to Michael Chung, Assistant professor of radiology at Icahn School of Medicine at Mount Sinai, NYC.

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News • Rehabilitation

Hope for patients in vegetative and minimally conscious states

Non-invasive brain stimulation is to be trialed for the first time alongside advanced brain imaging techniques in patients who are minimally conscious or in a vegetative state. The study builds on promising results from the Centre for Human Brain Health at the University of Birmingham which suggested that non-invasive brain stimulation can improve the success of rehabilitation for non-responsive…

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News • Magnetic resonance elastography

Faster than fMRI: Seeing brain activity in ‘almost real time’

The speed of the human brain is remarkable. Almost immediately upon being exposed to stimuli, neurons are activated, prompting subconscious reactions and, a fraction of a second later, thought. But the speed at which we can noninvasively follow brain function using an MRI is not as impressive. Functional MRI (fMRI), which measures changes in blood-oxygen levels, has revolutionized neuroscience by…

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Article • Spatial cognition and neurodegeneration

When the compass fails

Where are we coming from? Where are we going? Where are we right now? Our sense of spatial orientation gives us answers to these questions. We spoke with Professor Thomas Wolbers about the problems of diagnosing orientation disturbances and how the measurement of our sense of space could help in the fight against neuro-degenerative illnesses such as Alzheimer’s.

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News • Early dementia diagnosis

Brain imaging provides clues about memory loss

University of California, Irvine-led researchers, however, have found that high-resolution functional magnetic resonance imaging of the brain can be used to show some of the underlying causes of differences in memory proficiency between older and younger adults. The study involved 20 young adults (ages 18 to 31) and 20 cognitively healthy older adults (ages 64 to 89). In the study, the…

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Article • Microbleed detection

A new hope for Alzheimer's prediction

New information on dementia biomarkers is emerging, as increasing results from population studies become available. However, although the list of risk factors lengthens, the value of these predictors, and more generally the cause of disease, remain to be determined, according to Gabriel Krestin, professor and chairman of the Department of Radiology & Nuclear Medicine at Erasmus MC, University…

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Article • Brain MRI-mining

The birth of psychoradiology

The emerging field of psychoradiology is taking a major step ahead. A new study highlights MRI’s role in identifying people with attention deficit and hyperactivity disorder (ADHD) and classifies subtypes of the condition, a leading Chinese researcher explained at the ESMRMB annual meeting.

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News • Neurology

Reliving nightmare flight offer new clues about trauma memory

A group of passengers who thought they were going to die when their plane ran out of fuel over the Atlantic Ocean in August, 2001 have had their brains scanned while recalling the terrifying moments to help science better understand trauma memories and how they are processed in the brain.

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Article • Brain Imaging

Detailed images of the brain

Refined acquisition techniques and coils facilitate the assessment of cranial nerves with MRI. Professor Dr Elke Gizewski, Director of the University Clinic for Neuroradiology at the Medical University Innsbruck, Austria, is an expert in diagnostic and interventional neuroradiology and explains pathologies and scanning techniques for intracranial nerves.

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Using brain waves to steer a wheelchair

At the Joint Congress of European Neurology in Istanbul, researchers from Austria and Belgium have presented a study exploring innovative methods for communicating with coma patients. Their aim is to be able to communicate with patients by detecting brain activity even in people with inhibited consciousness.

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Article • MRI

9-, 10- or even 11-Tesla – is more always better?

Advancing magnetic resonance imaging (MRI) up the Tesla scale may sound good, but will it produce the results and patient safety radiologists actually desire? Faced with the question: ‘How many Tesla should it be?’, Professor Siegfried Trattnig MD, head of the Centre of Excellence in high-field MRI at the University Clinic for Radiodiagnostics, Medical University of Vienna, and Austria’s…

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The ultra-high-field MRI symposium

Early problems of ultra-high field Magnetic Resonance Imaging (MRI) have been overcome by successful development of adequate hardware. In consequence big efforts have been achieved in structural imaging, as well in functional imaging. Basic scientists and physicians who work in ultra-high-field MRI in Europe and the USA, met at the Berlin Ultra-high-field Facility (BUFF), in the Max Dehlbrück…

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The brain - A promising target for multimodal imaging

Integrated PET/MRI systems will permit the simultaneous acquisition of molecular, functional and structural parameters. The combined strengths of PET (high sensitivity and specificity, but relatively low spatial resolution) and MRI (high resolution, but low sensitivity) is the most attractive feature of multimodal imaging with hybrid scanners. Their application could substantially contribute to…

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German Radiology Congress 2008

Along with paediatric radiology, interventional radiology will have a high profile at the 89th German Radiology Congress and 5th Joint Congress with the Austrian Radiology Society. Congress presidents Professor Dierk Vorwerk and Professor Richard Fotter outlined what's on the agenda for the expected 6,900 visitors. Training, they pointed out, will aim at those preparing to specialise in…

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fMRI may detect brain activity of patients in vegetative state

British researchers detected near-normal brain activity in patients who are believed to be in a persistent vegetative state (PVS) by using functional MRI. The findings may help doctors' to diagnose patients that might have a chance for recovery, but the researchers warn to over-intertpret their resulsts.

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The MRI-MARCB project

Despite advances in magnetic resonance imaging (MRI) that have revolutionised diagnostic possibilities, e.g. for functional imaging (fMRI), motion artifacts are still extremely detrimental in multi-slice 3D sequences, often used in fMRI or with uncooperative patients (children, elderly, accidents, stroke...).

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