Magnetic Resonance Imaging (MRI) News and Research

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Magnetic resonance imaging (MRI) uses a large magnet and radio waves to look at organs and structures inside your body. Health care professionals use MRI scans to diagnose a variety of conditions, from torn ligaments to tumors. MRIs are very useful for examining the brain and spinal cord. Also called: Magnetic resonance imaging, NMR, Nuclear magnetic resonance.

Consultation on the protection of patients and volunteers undergoing MRI examinations

The Health Protection Agency has published a consultation document on its website about the protection of patients and volunteers undergoing magnetic resonance imaging (MRI) examinations.

1 Nov 2007

Step toward mapping the human decision-making process

The brain, the human supercomputer, might work more like an assembly line when recognizing objects, with a hierarchy of brain regions separately absorbing and processing information before a person realizes what they are seeing, according to new research conducted at the University of Pittsburgh and published in the Oct. 31 edition of the Journal of Neuroscience.

31 Oct 2007

New brain marker predicts cognitive decline and the development of Alzheimer's disease

Duke University Medical Center researchers have used imaging technology to identify a new marker that may help identify those at greatest risk for cognitive decline and the development of Alzheimer's disease.

31 Oct 2007

Hunger influenced by leptin hormone

Researchers at UCLA have determined the brain circuits involved in hunger that are influenced by a hormone called leptin.

29 Oct 2007

What's the brain got to do with education?

Quite a lot - according to teachers in a recent survey commissioned by The Innovation Unit and carried out by researchers at the University of Bristol.

29 Oct 2007

Diffusion tensor imaging shows structural changes in mild traumatic brain injury

Researchers report that diffusion tensor imaging can identify structural changes in the white matter of the brain that correlates to cognitive deficits even in patients with mild traumatic brain injury.

25 Oct 2007

Optimism - how the brain generates the human tendency

A neural network that may generate the human tendency to be optimistic has been identified by researchers at New York University.

24 Oct 2007

Pregnant women at risk for unnecessary operations due to misdiagnosis of appendicitis

New research published in the October issue of the Journal of the American College of Surgeons suggests that pregnant women suspected of having appendicitis are often misdiagnosed and undergo unnecessary appendectomies (removal of the appendix) that can result in early delivery or loss of the fetus.

24 Oct 2007

Can a lack of sleep drive you crazy?

Scientists in the U.S. have linked a lack of sleep to mental illness; they say brain scans can show how the brain gets tired and over-emotional when someone is deprived of sleep.

24 Oct 2007

Sleep-deprivation causes brain to overreact to negative experiences

Without sleep, the emotional centers of the brain dramatically overreact to negative experiences, reveals a new brain imaging study in the October 23rd issue of Current Biology, a publication of Cell Press.

22 Oct 2007

Exercise improves thinking and reduces diabetes in overweight kids

Just three months of daily, vigorous physical activity in overweight children improves their thinking and reduces their diabetes risk, researchers say.

22 Oct 2007

Identifying psychiatric and behavioral problems in teens

Your teen is moody. He's not doing well in school. He wants to be left alone. Does he have a learning disability? Depression? Or maybe he's just a normal teen?

19 Oct 2007

Massage could put you at risk for nerve injury

Massage is commonly regarded as a therapy associated with relieving muscle tension and pain.

18 Oct 2007

Insulin levels affect the brain's dopamine systems

Insulin, long known as an important regulator of blood glucose levels, now has a newly appreciated role in the brain.

18 Oct 2007

Blood modulates how neurons process information

MIT scientists propose that blood may help us think, in addition to its well-known role as the conveyor of fuel and oxygen to brain cells.

17 Oct 2007

Genetic contributions to human brain morphology and intelligence

While showing an impressive growth prenatally, the human brain is not completed at birth.

17 Oct 2007

Optical coherence tomography helps track multiple sclerosis

A five-minute eye exam might prove to be an inexpensive and effective way to gauge and track the debilitating neurological disease multiple sclerosis, potentially complementing costly magnetic resonance imaging to detect brain shrinkage - a characteristic of the disease's progression.

16 Oct 2007

Knee buckling common in older adults

Knee buckling which is a sudden "giving way" of the knee is not an uncommon event particularly for older people.

16 Oct 2007

Benefits of exercise on the aging brain

Bradley Hatfield, professor in the University of Maryland, College Park, School of Public Health, uses high tech brain imaging to study the benefits of exercise on the aging brain.

15 Oct 2007

Scientists identify brain circuits that 'decide' how much we eat

Scientists have identified the brain circuits that 'decide' how much we eat. Using live brain scanning techniques and an innovative study design, researchers have discovered how the brain controls food intake in humans. Their findings are published in Nature.

15 Oct 2007