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.

Search for new multiple sclerosis drug

UT Southwestern Medical Center is the lead research site testing a new treatment for a rare form of multiple sclerosis. Called "primary progressive," this type of MS affects about 15 percent of patients with the neurodegenerative disease.

26 Apr 2005

New statin study shows arrested progression of atherosclerosis

The first study to use cutting edge magnetic resonance imaging to examine the effect of a statin - rosuvastatin (Crestor) - on the fatty plaques in arteries, was presented yesterday at the 75th European Atherosclerosis Society Congress. ORION revealed that rosuvastatin has a beneficial effect on the size and composition of fatty plaques in arteries (specifically the carotid artery in the neck). Fatty plaques that are vulnerable to sudden rupture can cause heart attacks and strokes without warning.

25 Apr 2005

Osteoporosis drug reduces women's risk of mild cognitive impairment

A drug prescribed for the prevention of osteoporosis reduced women's risk of mild cognitive impairment by 33 percent in a worldwide clinical trial led by researchers at San Francisco VA Medical Center (SFVAMC).

6 Apr 2005

Scientist finds different paths lead to similar cognitive abilities

Despite the divergent evolutionary paths of dolphins and primates -- and their vastly different brains -- both have developed similar high-level cognitive abilities, says Emory University neuroscientist and behavioral biologist Lori Marino.

5 Apr 2005

Different antipsychotic medications may have different effects on brain volume in patients with first episode of psychosis

After a first psychotic episode, patients who were treated with an atypical antipsychotic medication had less change in brain volume compared with patients treated with a conventional antipsychotic medication, according to an article in the April issue of Archives of General Psychiatry.

4 Apr 2005

Left-right brain mystery - trail is hot and cold

Australian National University (ANU) researchers have developed a new device that could potentially unravel the mysteries of the left and right brain by measuring ear temperature.

29 Mar 2005

Diffusion MRI gives early indication if brain cancer therapy is effective

A special type of MRI scan that measures the flow of water molecules through the brain can help doctors determine early in the course of brain cancer regimen if a patient's tumor will shrink, a new study shows.

28 Mar 2005

Evidence of cross-activation in brain regions of people who see letters and numbers in colors

Synesthesia, a condition characterized by one sensory experience generating another – so that shapes have tastes, for instance – is estimated to affect between 1 in 200 to 1 in 2,000 people. The most common form involves seeing specific letters or numbers (graphemes) in specific colors.

23 Mar 2005

Images of brain activity may hold clues to the onset of schizophrenia

Images of brain activity may hold clues to the onset of schizophrenia in people at high risk for the disease, according to a study headed by psychiatry researchers at the University of North Carolina at Chapel Hill School of Medicine.

21 Mar 2005

Doctors may soon be able to diagnose multiple sclerosis (MS) with a simple blood test

New research by Wake Forest University Baptist Medical Center and colleagues suggests that one day, doctors may be able to diagnose multiple sclerosis (MS) with a simple blood test. The findings are reported in the current issue of the Journal of Molecular Neuroscience.

15 Mar 2005

College in retirement helps stave off mental decline

A new study from the University of Toronto helps explain why higher education appears to slow down cognitive decline as people age. It seems possible that education strengthens the ability to "call in the reserves" of mental prowess.

14 Mar 2005

Functional magnetic resonance imaging shows that hypnosis eases pain

Although hypnosis has been shown to reduce pain perception, it is not clear how the technique works. Identifying a sound, scientific explanation for hypnosis' effect might increase acceptance and use of this safe pain-reduction option in clinical settings.

14 Mar 2005

Evidence for a self-reinforcing "memory loop" - brain emotional center triggers the memory center

Researchers exploring the brain structures involved in recalling an emotional memory a year later have found evidence for a self-reinforcing "memory loop" - in which the brain's emotional center triggers the memory center, which in turn further enhances activity in the emotional center.

8 Mar 2005

Autistic children shy from eye contact because they perceive even the most familiar face as an uncomfortable threat

The work deepens understanding of an autistic brain's function and may one day inform new treatment approaches and augment how teachers interact with their autistic students.

6 Mar 2005

Visual cortex contains neurons that are sensitive to viewing angle

Mistakes made by human subjects in identifying the facing direction of faces, cars or meaningless objects have yielded evidence that the brain contains nerve cells, or neurons, whose job is to encode the viewing angle of objects. It is well known that certain neurons respond to color, motion, edges and other aspects of our environment.

3 Mar 2005

Abnormal brain structure tied to spatial, numerical thinking problems when children lack part of chromosome

Certain genetic diseases affect children's educational abilities in a distinctive pattern: impairing their numerical abilities more than their verbal skills. New research sheds light on this split in abilities by investigating how differences in brain structures may influence how the mind works.

3 Mar 2005

The impact of cruciate ligament rupture on osteoarthritis of the knee

Study links tears of anterior cruciate ligament to increased risk and severity of disease even among patients with no recall of significant knee injury.

2 Mar 2005

Unique study of the use of deep brain stimulation

Canadian researchers have seen promising results from a unique study of the use of deep brain stimulation (DBS), in severely depressed patients resistant to standard treatments.

28 Feb 2005

New imaging technology may serve as objective outcome measures for orthopedic conditions

New imaging technologies are enabling doctors to not only diagnose a variety of orthopaedic and musculoskeletal conditions with more accuracy, but also to determine with unprecedented precision whether clinical recovery from bone, joint or tendon damage is actually complete and not simply a "placebo effect."

27 Feb 2005

New imaging method that may provide a clearer diagnosis of breast cancer

"This technique involves a new method for interpreting information gathered through MRI," explained Springer. "The technique involves recognizing that certain properties of MRI signals can change during the examination, much like the changing of a camera's shutter speed.

24 Feb 2005