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.

Echoes discovered in early visual brain areas play role in working memory

Vanderbilt University researchers have discovered that early visual areas, long believed to play no role in higher cognitive functions such as memory, retain information previously hidden from brain studies.

20 Feb 2009

Differences in language-related brain activity affected by sex?

Men show greater activation than women in the brain regions connected to language, according to researchers from CNRS, Université de Montpellier I and Montpellier III.

18 Feb 2009

Video imaging technique provides dynamic view of airway obstruction

A video imaging technique demonstrates that the soft palate, the tissue at the back of the roof of the mouth, is more elongated and angled in patients with obstructive sleep apnea both when they sleep and when they are awake, according to a report in the February issue of Archives of Otolaryngology-Head & Neck Surgery.

17 Feb 2009

New guidelines emphasize use of breast MRI to supplement standard imaging

Updated guidelines for physicians that represent best practices for using magnetic resonance imaging (MRI) to newly diagnose breast cancer and to make treatment decisions for breast cancer were published today in the Journal of the National Comprehensive Cancer Network.

17 Feb 2009

Closure of patent foramen ovale may benefit migraine sufferers

Reducing the frequency and severity of disabling migraines is crucial for quality of life.

16 Feb 2009

New insight into why gambling is so attractive to some

A new study demonstrates that when gambling, almost winning promotes significant recruitment of win-related circuitry within the brain and enhances the motivation to gamble.

15 Feb 2009

More evidence showing exercise helps people give up smoking

Research from the University of Exeter reveals for the first time, that changes in brain activity, triggered by physical exercise, may help reduce cigarette cravings.

10 Feb 2009

Heavy dope smoking can damage developing brain in teens, young adults

Adolescents and young adults who are heavy users of marijuana are more likely than non-users to have disrupted brain development, according to a new study.

2 Feb 2009

Stress disrupts human thinking, but the brain can bounce back

A new neuroimaging study on stressed-out students suggests that male humans, like male rats, don't do their most agile thinking under stress.

29 Jan 2009

Sociability traced to region of brain called amygdala

People with a genetic condition called Williams syndrome are famously gregarious. Scientists, looking carefully at brain function in individuals with Williams syndrome, think they may know why this is so.

29 Jan 2009

Research provides insight into brain mechanisms involved in empathy

Is it possible to share a pain that you observe in another but have never actually experienced yourself?

29 Jan 2009

New findings on schizophrenia

Schizophrenia may blur the boundary between internal and external realities by overactivating a brain system that is involved in self-reflection, and thus causing an exaggerated focus on self, a new MIT and Harvard brain imaging study has found.

21 Jan 2009

New scan shows bleeding inside heart after heart attack

Images that for the first time show bleeding inside the heart after people have suffered a heart attack have been captured by scientists, in a new study published today in the journal Radiology.

19 Jan 2009

Altered brain activity in schizophrenia may direct focus on self

19 Jan 2009

Lack of grey matter linked to schizophrenia and bipolar disorder

A research study led by scientists from the Gregorio Marañón University Hospital in Madrid and the Network of Centres for Biomedical Research in Mental Health Networks (CIBERSAM) shows that adolescents experiencing a first outbreak of psychosis have lower levels of grey matter in their brains than healthy teenagers. Strangely, this change was seen in patients suffering from various psychoses, including bipolar illness and schizophrenia.

19 Jan 2009

Artificial antibody delivers nanoparticles to tumors

Antibodies that target epidermal growth factor receptor (EGFR) have proven themselves as potent anticancer drugs. Now, a team of investigators led by Shuming Nie, Ph.D., and Lily Yang, Ph.D., both at the Emory University School of Medicine and members of the Emory-Georgia Tech Nanotechnology Center for Personalized and Predictive Oncology, is aiming to capitalize on this targeting ability, using a modified anti-EGFR antibody to delivery nanoparticles into tumor cells.

18 Jan 2009

Toxin-nanoparticle combo inhibits brain cancer invasion while imaging tumors

Working with a nanoparticle designed to target and image glioblastoma, a form of brain cancer, investigators at the University of Washington in Seattle have found that these same nanoparticles inhibit tumor cell invasion, one of the key events that leads to the metastatic spread of cancer. The investigators have also determined how the nanoparticles exert this potentially beneficial effect.

18 Jan 2009

Biodegradable nanoprobe images new blood vessel growth

Angiogenesis, the growth of new blood vessels, plays a critical role in several chronic human diseases, including metastatic cancer. In fact, several new anticancer therapies are designed to starve tumors by shutting down angiogenesis, but the lack of a good assay for quantifying angiogenesis in the body has hampered the development of effective antiangiogenesis therapies.

18 Jan 2009

New research reveals brain activity that underlies our tendency to "follow the crowd"

The study, published by Cell Press in the January 15th issue of the journal Neuron, provides intriguing insight into how human behavior can be guided by the perceived behavior of other individuals.

15 Jan 2009

Strong quadriceps may benefit those with knee osteoarthritis

Studies on the influence of quadriceps strength on knee osteoarthritis (OA), one of the leading causes of disability among the elderly, have shown conflicting results.

13 Jan 2009