Medical Imaging News and Research

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Cognitive training can alter the biochemistry of the brain

Researchers at the Swedish medical university Karolinska Institutet have shown for the first time that the active training of the working memory brings about visible changes in the number of dopamine receptors in the human brain.

8 Feb 2009

People without heart disease symptoms should use caution in obtaining cardiac imaging exams

At the radiation dose levels used in cardiac imaging exams, such as cardiac CT or nuclear medicine scans, the risk of potentially harmful effects from ionizing radiation are low.

2 Feb 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

Magnetic resonance diffusion tensor imaging predicts effects of multiple sclerosis flare-ups on optic nerve

One of the most pernicious aspects of multiple sclerosis (MS) - its sheer unpredictability - may finally be starting to yield to advanced medical imaging techniques.

17 Dec 2008

MRI scans can predict effects of multiple sclerosis 'flare-ups' on optic nerve

One of the most pernicious aspects of multiple sclerosis (MS) - its sheer unpredictability - may finally be starting to yield to advanced medical imaging techniques.

16 Dec 2008

Mathematical models of adaptive immunity

More than five million people die every year from infectious diseases, despite the availability of numerous antibiotics and vaccines. The discovery of penicillin to treat bacterial infections, along with the development of vaccines for previously incurable virus diseases such as polio and smallpox, achieved great reductions in mortality during the mid-20th century.

11 Dec 2008

Early photon tomography provides clearer picture of tumors in living animals

Fluorescent molecules - i.e. substances which can be stimulated to emit light - are extremely valuable tools in biological research and medical diagnosis.

10 Dec 2008

FDA approves lung analysis software from VIDA Diagnostics

VIDA Diagnostics Inc., a University of Iowa Research Foundation licensee and UI Technology Innovation Center business incubator tenant, announced today that its primary product, Pulmonary Workstation 2.0 (PW2) has obtained FDA 510(k) clearance for sale.

24 Nov 2008

Deep brain mapping to pinpoint specific are of brain associated with Gulf War syndrome

Researchers at Southern Methodist University in Dallas are pioneering the use of spatial statistical modeling to analyze brain scan data from Persian Gulf War veterans, aiming to pinpoint specific areas of the their brains affected by Gulf War Syndrome.

19 Nov 2008

Pulsed ultrasound used to remote control brain circuits

In a twist on nontraditional uses of ultrasound, a group of neuroscientists at Arizona State University has developed pulsed ultrasound techniques that can remotely stimulate brain circuit activity.

29 Oct 2008

Sensitive ultrasound to spot early-stage cancer

European researchers have developed highly sensitive ultrasound equipment that can detect tiny quantities of reflective microbubbles engineered to stick to specific tumour cells. The technique should pick up tumours early and improve patients' chances of survival.

26 Oct 2008

A little exercise prolongs life expectancy for people with heart disease

Exercising once a week can help prolong life expectancy for people with heart disease according to a new study from the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway.

21 Oct 2008

Infectious heart disease death rates rising again say scientists

Infectious heart disease is still a major killer in spite of improvements in health care, but the way the disease develops has changed so much since its discovery that nineteenth century doctors would not recognise it, scientists heard today (Thursday 11 September 2008) at the Society for General Microbiology's Autumn meeting being held this week at Trinity College, Dublin.

10 Sep 2008

New imaging technology provides early diagnosis of osteoarthritis

A newly developed medical imaging technology may provide doctors with a long-awaited test for early diagnosis of osteoarthritis (OA), scientists from New York reported today at the 236th National Meeting of the American Chemical Society.

20 Aug 2008

Dual-mode nanoparticles image tumors using MRI and PET

Medical imaging represents one of the most used and useful procedures in the oncologist's diagnostic toolkit, even though each of the most useful techniques-magnetic resonance imaging (MRI), computerized tomography x-ray imaging (CT), and positron emission tomography (PET) scanning-has its own set of limitations.

17 Aug 2008

Ultra-miniature bialy-shaped drug delivery particles

Ultra-miniature bialy-shaped particles - called nanobialys because they resemble tiny versions of the flat, onion-topped rolls popular in New York City - could soon be carrying medicinal compounds through patients' bloodstreams to tumors or atherosclerotic plaques.

29 Jul 2008

Visualisation software to aid prostate cancer detection

Visualisation specialists See3D, a spin off company of the University of Aberystwyth, is developing unique, sophisticated computer-generated models that will help doctors to improve the diagnosis and treatment of prostate cancer.

22 Jul 2008

Holey nanoparticles create new tumor imaging and therapeutic agent

Using a polymer that has both water-soluble and water-insoluble regions, a team of investigators from the Siteman Center of Cancer Nanotechnology Excellence has created a nanoparticle shaped like a bialy, a close relative of the bagel. Combining this nanoparticle with manganese, a metal that boosts magnetic resonance imaging signals, and an antibody that targets blood vessels, the investigators then created a new type of imaging agent that also has the potential to deliver drugs to tumors.

9 Jul 2008

European research project to explore Alzheimer's diagnosis

VTT Technical Research Centre of Finland, GE Healthcare, a division of the General Electric Company (NYSE: GE) and a Consortium of leading research institutions across Europe announced the PredictAD project, a research collaboration aimed at developing new diagnostic procedures for patients with Alzheimer's disease.

10 Jun 2008