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 minimally invasive surgery techniques and instruments reduce tissue damage and infection

New, delicate surgery techniques to hunt for tumours could benefit from a lighter touch - but from a robot, rather than from a human hand. Canadian researchers have created a touchy-feely robot that detects tougher tumour tissue in half the time, and with 40% more accuracy than a human. The technique also minimises tissue damage.

24 Aug 2009

Depression causes reduced function in the reward center of brain

Clinically depressed individuals are less capable of finding pleasure in activities they previously enjoyed, a recent study has proven. Research featured in the August 26 issue of the NeuroReport shows reduced brain function in the reward center of the brain in depressed individuals, when compared to healthy subjects.

19 Aug 2009

Clinically depressed individuals show reduced brain function

19 Aug 2009

Genentech announces Phase III study results for Avastin (bevacizumab) in combination with chemo in HER2-negative breast cancer

Genentech, Inc. today announced that a Phase III study (RIBBON 2) of Avastin (bevacizumab) in combination with chemotherapy increased the time women with metastatic HER2-negative breast cancer whose initial chemotherapy had stopped working lived without the disease worsening (progression-free survival or PFS), compared to chemotherapy alone.

18 Aug 2009

Tiny magnetic particles guide stem cells to damaged tissue

Microscopic magnetic particles have been used to bring stem cells to sites of cardiovascular injury in a new method designed to increase the capacity of cells to repair damaged tissue, UCL scientists announced today.

18 Aug 2009

FDA approves Extavia for multiple sclerosis

The US Food and Drug Administration (FDA) has approved Extavia(R) (interferon beta-1b), the first in a new planned portfolio of multiple sclerosis (MS) medicines from Novartis to help patients manage this devastating disease.

17 Aug 2009

MRI increases chances of more extensive surgery over conservative approaches in breast cancer diagnosis

A new review says using magnetic resonance imaging (MRI) before surgery to assess the extent of early breast cancer has not been shown to improve surgical planning, reduce follow-up surgery, or reduce the risk of local recurrences.

13 Aug 2009

Sleep patterns can identify adolescents at greatest risk for depression

Sleep patterns can help predict which adolescents might be at greatest risk for developing depression, a researcher at UT Southwestern Medical Center has found in a five-year study.

13 Aug 2009

Similarities found in the way neural circuits linked to vision process information in both sighted and blind since birth

The ability to recognize visually presented objects relies on a critical neural pathway called the ventral stream. Previous imaging studies of the human brain have demonstrated that the sight of nonliving objects, such as tools and houses, activates different regions within the ventral stream than the sight of living things, such as animals and faces. It is not known whether category-specific neural responses in the ventral stream depend on visual experience.

13 Aug 2009

Alcoholics display abnormal brain activity when processing facial expressions

Researchers from Boston University School of Medicine (BUSM) have found that individuals who have a long history of alcoholism, but who have been abstinent for at least a month up to many years, showed abnormal brain activity when looking at facial expressions of others.

12 Aug 2009

Education impacts cognitive function in Alzheimer's disease

Researchers at the Department of Psychiatry, Klinikum rechts der Isar, Technische Universität München, investigated the effects of formal education on the symptoms of Alzheimer's disease. They were able to show that education diminishes the impact of Alzheimer's disease on cognition even if a manifest brain volume loss has already occurred.

12 Aug 2009

Gallbladder emptying in primary sclerosing cholangitis patients

Primary sclerosing cholangitis (PSC) is an idiopathic chronic cholestatic inflammatory liver disease characterized by diffuse fibrosing inflammation of intra- and/or extrahepatic bile ducts, resulting in bile duct obliteration, biliary cirrhosis, and eventually hepatic failure. One of the most common symptoms at the time of presentation of PSC is mild to severe abdominal pain localized in the right upper quadrant. However, the mechanisms responsible for the abdominal pain in PSC are not fully understood.

10 Aug 2009

NIH stimulus funding supports Emory - grants to advance research, create jobs, support students

At least 50 research projects so far, supported by more than $10 million in stimulus grants from the National Institutes of Health, are expected to lead to new discoveries at Emory University that will improve medical treatment, create new jobs, and provide additional educational opportunities for students. Emory has received half of all the NIH ARRA grants awarded to Georgia academic institutions thus far.

9 Aug 2009

Research looks at enzyme that causes genetic diseases

Researchers from CIC bioGUNE's Structural Biology Unit and Columbia University (New York) have conducted a joint research project, published in the prestigious scientific journal Structure, to gain in-depth knowledge of the structure of pyruvate carboxylase when it is in solution (in the "natural" state).

5 Aug 2009

New insights into peripheral artery disease

Walking is a painful experience for many of the eight million Americans who suffer lower extremity peripheral arterial disease, or PAD. The condition, which is associated with aging and involves progressive functional decline, can cause heaviness, tightness, cramping or sharp pain in the calf muscle. Symptoms typically disappear with rest and return when walking resumes.

5 Aug 2009

New discovery about dystonia

Most people who carry a genetic mutation for a movement disorder called dystonia will never develop symptoms, a phenomenon that has puzzled scientists since the first genetic mutation was identified in the 1990's.

5 Aug 2009

Cutting-edge imaging research aims to map brain injuries

In the first study of its kind, researchers at Saint Louis University are recruiting patients for a clinical trial that will use cutting-edge imaging equipment to map the brain injuries of combat veterans and civilians, aiming to better understand the nature of their injuries.

5 Aug 2009

Biological explanation for psychopathy

Professor Declan Murphy and colleagues Dr Michael Craig and Dr Marco Catani from the Institute of Psychiatry at King's College London have found differences in the brain which may provide a biological explanation for psychopathy. The results of their study are outlined in the paper 'Altered connections on the road to psychopathy', published in Molecular Psychiatry.

4 Aug 2009

Neural correlates of impaired cognitive-behavioral flexibility in anorexia nervosa

Anorexic patients drastically reduce food intake and are often not capable of changing their behavior. This can lead to life-threatening weight loss. Using MRI technology, scientists at Heidelberg University Hospital have discovered for the first time processes in brain metabolism that explain this disturbed eating behavior.

3 Aug 2009

Implantable device offers continuous cancer monitoring

Surgical removal of a tissue sample is now the standard for diagnosing cancer. Such procedures, known as biopsies, are accurate but offer only a snapshot of the tumor at a single moment in time.

21 Jul 2009