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Tag: "magnetic" at medical news

A new century of Alzheimer's disease research

...ord Jack, M.D., in Rochester, patients may undergo magnetic resonance imaging (MRI) to examine brain structure, including changing volumes in white matter and hints of vascular damage; MR spectroscopy to assess chemical processing; functional MRI to look at the brain’s reaction to stimulus; positron emission ...

Genetic Disease Causes hearing loss

... findings and audiologic data were correlated with magnetic resonance imaging and computed tomography imaging studies. Thirty-five patients with von Hippel-Lindau disease and ELSTs in 38 ears were identified. the most common ELSTassociated clinical finding in this series was hearing loss. Sensorineural hear...

Chickens also Use Earth's Magnetic Field to Sense Direction

...many other animals and birds, also use the Earth's magnetic field to sense direction . As part of their expe...schko placed newly hatched chicks in an artificial magnetic field, teaching them by intensive training that their mother was always behind the screen that was i...

China Cracks the Whip Against Drug Manufacturers Who Fail Quality Norms

...id could cause lead poisoning. They also covered a magnetic building set and plastic castles with small parts, which it said could choke children. Chaotic food and drug safety mechanisms, murky laws, corruption, and intense competition among government agencies are among the ills supposedly afflicting the...

Researchers Say Brain Region Responsible for Pain's Ability to Seek Attention

...lunteers' brains during the tasks using functional magnetic resonance imaging (fMRI) which uses harmless magnetic fields and radio waves to scan the brain to determine blood flow across regions, which reflects brai...

Now, 'virtual' Mouse Brains Available on the Net

...task by extending the capabilities of conventional magnetic resonance imaging. "These images can be more than 100,000 times higher resolution than a clinical MRI scan," said G. Allan Johnson, Duke's Charles E. Putman Distinguished Professor of radiology and professor of biomedical engineering and physics, ...

New Nano-power Could Make Biopsies Sensitive and Efficient

...ome up with a solution that harnesses the power of magnetic attraction. The idea is to use magnetic iron oxide nanoparticles enclosed in a biocompatible material. These in turn can be coated with anti...

Research Reveals Anatomy of Suppressed Memories: Study

...t. The results of the scans or fMRIs (functional magnetic resonance imaging) indicated that the volunteers were able to "exert some control over their emotional memories," said Brendan Depue, a doctoral student in neuroscience at the University of Colorado at Boulder, and lead author of the study. "By ess...

Research into Suppressed Memories Could Help Treatment for Depression

...t. The results of the scans or fMRIs (functional magnetic resonance imaging) indicated that the volunteers were able to "exert some control over their emotional memories," said Brendan Depue, a doctoral student in neuroscience at the University of Colorado at Boulder, and lead author of the study. "By ess...

Tumor Painting to Fight Against Cancer

... of the surgical site. Current technology, such as magnetic resonance imaging (MRI) can distinguish tumors from healthy tissue only if more than 1 million cancer cells are present. But Cy5.5 can identify tumors with as few as 2000 cancer cells, making it 500 times more sensitive than MRI. "My greatest hope...

Scorpion Venom may Help Treat Cancer

...rs with at least 500 times more sensitivity than a magnetic resonance imaging scan, the researchers found. The scientists said that in tests on mice, it highlighted brain tumours as small as one millimetre in diameter. They are now preparing for human clinical trials. The researchers said the technique coul...

Study Finds Abdominal Fat Not the Prime Cause for Metabolic Syndrome

...s part of the study, researchers used powerful new magnetic resonance imaging techniques to observe how nutrie...ith two meals high in carbohydrates, and turned to magnetic resonance spectroscopy to measure the production of liver and muscle triglyceride, the storage form ...

CT Scan Radiations may Lead to Cancer

...s stress electrocardiography, echocardiography, or magnetic resonance imaging. If CTCA is considered as an alternative to invasive coronary angiography, the risks and benefits of each test require consideration. Contact the JAMA/Archives Media Relations Department at 312-464-JAMA or email: mediarelations@j...

Converting Left-hander to Right-hander also Changes the Brain

...the task their brain activity was monitored with a magnetic resonance imaging (MRI) scan. The researchers found that one movement-related area of the brain was most active in the right hemisphere for left-handers, and in the left hemisphere for right-handers, including converted left-handers. But the activ...

Doctors Puzzled Over Man's Normal Life With Unusually Tiny Brain

... left leg. Scans by computed tomography (CT) and magnetic resonance imaging (MRI) showed that the man's cerebral cavities, called ventricles, had massively expanded. "The brain itself, meaning the grey matter and white matter, was completely crushed against the sides of the skull," Feuillet told AFP. "T...

Simple Chemical Reaction may Help Early Disease Diagnosis

...ders up to 100 times when detected through nuclear magnetic resonance spectroscopy equipment. The study was ...dy," Raftery said. The researchers used nuclear magnetic resonance spectroscopy, a cousin of magnetic resonance imaging to detect hydrogen or carbon atoms to...

Women, Younger Patients at Greater Lifetime Cancer Risk from CT Scan

...s stress electrocardiography, echocardiography, or magnetic resonance imaging. If CTCA is considered as an alternative to invasive coronary angiography, the risks and benefits of each test require consideration, they added....

Solving Puzzles Could Boost Brain Power

... or a group brain exercise programme. Functional magnetic resonance imaging (fMRI) was used to analyse the blood flow and activity in the participants' brains while they completed assigned tasks. According to Mozolic, the study is ongoing and will eventually include a total of 66 participants. "Behaviou...

Software Improvements in Breast MRI Scans

...available software to enhance breast scans done by magnetic resonance imaging (MRI) reduces the number of false positive identifications of malignant tumors and the subsequent need for biopsies. Teresa Williams, M.D., and colleagues at the Seattle Cancer Care Alliance and the University of Washington Medic...

Meditation Increases Attention - A Brain Scan Report

... were taught to meditate, all subjects underwent a magnetic resonance imaging scan of the brain while they were meditating. Among all experienced meditators, the MRI scan found greater activity in brain circuits involved in paying attention. "We found that regions of the brain that are intimately involved...

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