Magnetic Resonance Imaging News and Research

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Magnetic resonance imaging (MRI) is an imaging technique which physicians use for the diagnosis and treatment of medical conditions.

Music training may change the brain

New research shows that the special training of music conductors seems to enhance the way their senses work together - enabling them to quickly tell who played a wrong note, for example. Scientists hope the research will lead to new discoveries about how music training may change the brain.

21 Nov 2005

Visibility, visual awareness, and visual masking of simple unattended targets are confined to areas in the occipital cortex beyond human V1/V2

Dartmouth professor of psychological and brain sciences Peter Tse has published new results in his on-going investigation of the brain and how it transforms visual stimuli into conscious experience.

16 Nov 2005

Early changes in the oxygenation of the skin may help predict foot disease in diabetes patients

Foot ulcerations are one of the most serious complications of diabetes, resulting in more than 80,000 lower-leg amputations each year in the U.S. alone.

14 Nov 2005

Gender affects the way a person's brain responds to humor

Need more evidence that men and women are different? Look no further than the Sunday funnies. According to a new Stanford University School of Medicine study, gender affects the way a person's brain responds to humor.

14 Nov 2005

Meditation associated with increased cortical thickness

Meditation is known to alter resting brain patterns, suggesting long lasting brain changes, but a new study by researchers from Yale, Harvard, Massachusetts General Hospital, and the Massachusetts Institute of Technology shows meditation also is associated with increased cortical thickness.

13 Nov 2005

MRI measurements of scar tissue accurately predict the risk of arrhythmia-related sudden death

Using magnetic resonance imaging (MRI) scans of the heart wall, researchers at Johns Hopkins have found that people whose muscle wall thickness contained more than 25 percent scar tissue were approximately nine times more likely to test positive for a fast and dangerous heart rhythm known as ventricular arrhythmia.

3 Nov 2005

Functional diffusion map to help predict brain tumor outcomes

A special type of MRI scan that measures the movement of water molecules through the brain can help doctors determine halfway through treatment whether it will successfully shrink the tumor or a patient's cancer will continue to grow, a new study shows.

1 Nov 2005

How the brain tracks time is essential to understanding all its functions

The brain is a "time machine," assert Duke neuroscientists Catalin Buhusi and Warren Meck. And understanding how the brain tracks time is essential to understanding all its functions. The brain's internal clocks coordinate a vast array of activities from communicating, to orchestrating movement, to getting food, they said.

30 Oct 2005

Increased physical activity may strenghten adult joint cartilage

Osteoarthritis (OA) is the leading cause of disability among adults. As the population ages, increased intervention efforts are vital to controlling the individual and public health toll of this chronic, crippling joint disease.

30 Oct 2005

Why some women turn from pussycats to tigers once a month!

At last there is evidence why some women turn from pussycats to tigers once a month!

26 Oct 2005

Research has important implications for autism

New research from Melbourne's Howard Florey Institute helps to explain why children with autism spectrum disorders (autism) have problem-solving difficulties.

24 Oct 2005

Link between emotional impairment and poor cognition in children with bipolar disorder

Using functional magnetic resonance imaging, Pavuluri and her colleagues examined the brain activity of teens while they were performing certain mental tasks. The researchers scanned the brains of 10 unmedicated bipolar patients with normal mood and compared them with 10 healthy subjects of the same age and gender.

20 Oct 2005

Short course of rTMS can increase finger sensitivity

Repetitive transcranial magnetic stimulation (rTMS) has emerged as an intriguing technique for exploring brain function, and a promising, though still unproven, form of therapy.

18 Oct 2005

Pathological liars found to have less gray matter

In a new study Dr. Adrian Raine and Yaling Yang of the University of Southern California, and colleagues found that individuals who habitually lied and cheated had less gray matter and more white matter in their prefrontal cortex than normal people.

18 Oct 2005

Brain injury can cause detrimental functional changes in brain regions far from the site of the actual injury

A study of patients who have difficulty paying attention to the left side of their environment has provided some of the first direct evidence that brain injury can cause detrimental functional changes in brain regions far from the site of the actual injury.

17 Oct 2005

Breast magnetic resonance imaging helps doctors select best treatment for early breast cancers

Breast magnetic resonance imaging enhances patient selection for accelerated, partial breast irradiation by detecting previously unsuspected, microscopic lesions within the breast, according to a study presented October 17, 2005, at the American Society for Therapeutic Radiology and Oncology's 47th Annual Meeting in Denver.

17 Oct 2005

No shred of evidence that HIV-positive men who lose fat in their legs reciprocally gain fat in their bellies

There is no syndrome that causes increased belly fat and decreased facial and limb fat among HIV-positive men who take antiretroviral drugs, according to a study by researchers at the San Francisco VA Medical Center and the University of California, San Francisco.

13 Oct 2005

Combining fMRI and PET scanning creates a way to compare different measurements of the brain's function concurrently

Clinical researchers from the University of Pennsylvania Health System (UPHS) are the first to combine fMRI and PET scanning in radiology, creating a way to compare different measurements of the brain's function concurrently. This analysis could lead to better diagnosis and treatment in patients suffering from brain disorders, like Alzheimer's disease.

12 Oct 2005

Violent video games lead to brain activity pattern that may be characteristic for aggressive thoughts

A Michigan State University researcher and his colleagues have shown that playing violent video games leads to brain activity pattern that may be characteristic for aggressive thoughts.

11 Oct 2005

Electron-beam computed tomography - a more accurate replacement for coronary catheterizations

Electron-beam computed tomography (EBCT) is more accurate than conventional catheter angiography for detecting a dangerous congenital heart abnormality that could cause sudden death, according to research by a Saint Louis University radiologist published last month in Catheterization and Cardiovascular Interventions: Journal of the Society for Cardiovascular Angiography and Interventions.

10 Oct 2005