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.

New video article describes novel procedure that can monitor brain function

A new video article in JoVE, the Journal of Visualized Experiments, describes a novel procedure to monitor brain function and aid in functional mapping of patients with diseases such as epilepsy. This procedure illustrates the use of pre-placed electrodes for cortical mapping in the brains of patients who are undergoing surgery to minimize the frequency of seizures. This technique, while invasive, provides real-time analysis of brain function at a much higher resolution than current technologies.

27 Jun 2012

First clinical trial to test cardiac drug regimen for DMD

The first landmark randomized clinical trial for a cardiac drug regimen in Duchenne muscular dystrophy (DMD) is testing whether earlier treatment can stop or slow down heart damage that usually kills people with the disease.

27 Jun 2012

Genetic risk for schizophrenia linked to brain volume alterations

Patients with schizophrenia and their unaffected first-degree relatives show altered gray and white matter volumes in specific brain regions compared with mentally healthy individuals, researchers report.

26 Jun 2012

Intensive insulin may backfire in acute stroke

Intensive control of glucose levels in patients with hyperacute stroke may do more harm than good, results of the randomized INSULINFARCT trial suggest.

25 Jun 2012

Study reveals function of dorsal anterior cingulate cortex in the brain

Every day the human brain is presented with tasks ranging from the trivial to the complex. How much mental effort and attention are devoted to each task is usually determined in a split second and without conscious awareness. Now a study from Massachusetts General Hospital (MGH) researchers finds that a structure deep within the brain, believed to play an important role in regulating conscious control of goal-directed behavior, helps to optimize behavioral responses by predicting how difficult upcoming tasks will be.

25 Jun 2012

Computer tomography delivers dependable data to analyze the heart's global pump function

Computer tomographic images deliver dependable data to analyze the heart's global pump function. This was shown in a study conducted by radiologists and cardiologists at Charité - Universitätsmedizin in cooperation with the Jena University Hospital.

23 Jun 2012

Amygdala volume reduced in schizophrenia, not psychotic BD

Amygdala volume is reduced in patients with schizophrenia compared with those who have psychotic bipolar disorder, researchers report.

22 Jun 2012

New methods to track stem cells

Researchers at the University of Liverpool have developed new methods to track stem cells and further understanding of what happens to them after they have been in the body for a significant period of time.

22 Jun 2012

Evidence mounts for vitamin D multiple sclerosis role

Three studies published in Neurology add weight to the theory that vitamin D levels have an important effect on relapse rates and cerebral lesions in patients with multiple sclerosis.

20 Jun 2012

Insight linked to gray matter volume in FEP patients

Results from an Irish study show that poor insight is associated with increased gray matter volume in subcortical and frontotemporal brain regions among patients with first-episode psychosis, but not in those with chronic schizophrenia.

20 Jun 2012

Imaging vital to localize stroke

Clinical signs and symptoms can rarely distinguish posterior circulation infarction from anterior circulation infarction, say researchers.

19 Jun 2012

Cardiovascular risks for excessive endurance training highlighted

Ironman triathlons, ultramarathons, and even marathons are potentially associated with a risk for adverse cardiovascular effects.

19 Jun 2012

IBMT linked with positive structural changes in brain connectivity

A Texas Tech University scientist studying the Chinese mindfulness meditation known as integrative body-mind training (IBMT) said he and other researchers have confirmed and expanded on changes in structural efficiency of white matter in the brain that can be related to positive behavioral changes in subjects practicing the technique for a month and a minimum of 11 hours total.

14 Jun 2012

Alpha-myosin triggers development of autoimmunity after heart attack

After people with type 1 diabetes have a heart attack, their long-term chance of suffering even more heart damage skyrockets. But the reason has long puzzled scientists. Now researchers at Joslin Diabetes Center have identified the misstep that sparks this runaway chronic damage and a promising way to block it.

14 Jun 2012

Researchers use brain imaging to uncover susceptibility to psychological stress and trauma

Most people have intense emotional reactions to traumatizing events like road accidents or combat. But some suffer far longer, caught in the grip of long-term debilitating disorders such as Post-Traumatic Stress Disorder (PTSD). Because doctors cannot predict who will develop these disorders, however, early or preventive intervention is not available. Now, a new project led by researchers at Tel Aviv University seeks to identify pre-traumatic subjects - those who are more susceptible to long-standing disorders if exposed to a traumatic incident.

14 Jun 2012

Significant increase in use of CT, MRI and PET imaging over the last two decades

Among six large integrated health care systems between 1996 and 2010 there was a substantial increase in the use of advanced diagnostic imaging, including approximately a tripling of the use of computed tomography and nearly a quadrupling of the use of magnetic resonance imaging, as well as a substantial increase in estimated radiation exposure, according to a study in the June 13 issue of JAMA.

13 Jun 2012

New study on motor chunking

You pick up your cell phone and dial the new number of a friend. Ten numbers. One. Number. At. A. Time. Because you haven't actually typed the number before, your brain handles each button press separately, as a sequence of distinct movements.

13 Jun 2012

Experimental drug and genetic differences indicate how people deal with fear and stress

Researchers at Duke University and the National Institutes of Health have found a way to calm the fears of anxious mice with a drug that alters their brain chemistry. They've also found that human genetic differences related to the same brain chemistry influence how well people cope with fear and stress.

12 Jun 2012

Cyberonics, Imricor enter agreement to develop MRI compatible leads for VNS Therapy System

Cyberonics, Inc. today announced that it has entered into an exclusive technology license agreement with Imricor Medical Systems, Inc. to develop Magnetic Resonance Imaging ("MRI") compatible leads for use with the VNS Therapy System (Vagus Nerve Stimulation).

11 Jun 2012

MRI scans reveal how sleep deprivation impairs brain regions associated with food processing

MRI scans from a study being presented today at SLEEP 2012 reveal how sleep deprivation impairs the higher-order regions in the human brain where food choices are made, possibly helping explain the link between sleep loss and obesity that previous research has uncovered.

11 Jun 2012