Imaging News and Research

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Real-time 3-D ultrasound in nerve blockade speeds patient recovery

Mayo Clinic physicians have adapted real-time 3-D ultrasound imaging devices -- including one designed to look at an infant's heart -- so that they can watch as they use a needle filled with anesthetic to numb individual nerves located inches under the skin.

16 Jul 2007

Emotional memories can be suppressed with practice

A new University of Colorado at Boulder study shows people have the ability to suppress emotional memories with practice, which has implications for those suffering from conditions ranging from post-traumatic stress disorder to depression.

13 Jul 2007

Detecting cognitive impairment in primary care: Performance assessment of three screening instruments

A new study published in the June issue of Journal of Alzheimer's Disease demonstrates the accuracy and validity of a new mathematics-based memory assessment developed by Medical Care Corporation to detect early signs of memory impairment due to Alzheimer's disease and other related disorders.

11 Jul 2007

Magnetic resonance spectroscopy for breast cancer

The American Cancer Society recently issued new recommendations for women with a higher risk of developing breast cancer, including those with a family history of breast or ovarian cancer, and those who may carry genetic mutations (BRCA1 or BRCA2) that make them more likely to develop the disease.

11 Jul 2007

Prophylactic antibiotics for children with UTI not associated with reduced risk of recurrence

The use of prophylactic antibiotics, which involves daily administration of antibiotics to children after an initial urinary tract infection, is not associated with reduced risk of recurrent urinary tract infections, but is associated with an increased risk of resistant infections, according to a study in the July 11 issue of JAMA.

11 Jul 2007

3-D microscopic views of tiny mouse brains available online

A multi-institutional consortium including Duke University has created startlingly crisp 3-D microscopic views of tiny mouse brains - unveiled layer by layer - by extending the capabilities of conventional magnetic resonance imaging.

10 Jul 2007

Brain lesions may be sign of more widespread disease in the brain

Lesions commonly seen on MRI in the brains of older patients may be a sign of potentially more extensive injury to the brain tissue, according to a recent study conducted by researchers at the Duke University Medical Center, in Durham, NC.

10 Jul 2007

Gene therapy offers promising approach to tackle pancreatic cancer

A molecularly engineered therapy selectively embeds a gene in pancreatic cancer that shrinks or eradicates tumors, inhibits metastasis, and prolongs survival with virtually no toxicity, researchers from The University of Texas M. D. Anderson Cancer Center report in the July 9 edition of Cancer Cell.

10 Jul 2007

Noninvasive ultrasound used to check health of carotid arteries

Specialists with the Strong Women's Heart Program are expanding a study that considers the effects of a statin drug on metabolic syndrome, a condition that increases women's risk for heart disease and stroke.

9 Jul 2007

Researchers discover brain pathway of depression in rats

Scientists' hunt for the cause of depression has implicated so many suspects and found so many treatments with different mechanisms that the condition remains an enigma.

9 Jul 2007

The brain predicts our perception of the outside world

The human brain anticipates our perception of the outside world. For example, it is capable of predicting if we are going to perceive tactile stimulation of weak intensity or, on the contrary, if a more intense stimulation will be perceived more or less painfully.

9 Jul 2007

NanoSIMS instrument clarifies nutrient cycle

Scientists at the University of Southern California have applied a nanoscale imaging method to a biological system, helping to clear up an old puzzle of the global carbon and nitrogen cycle.

9 Jul 2007

Researchers pinpoint brain region responsible for pain's ability to affect cognitive processing

Anybody who's tried to concentrate on work while suffering a headache knows that pain compellingly commands attention,which is how evolution helped ensure survival in a painful world.

9 Jul 2007

Study shows inaccuracies in cardiac PET-CT imaging

Current PET-CT scanners with standard commercial software designed to provide images of the heart are falsely indicating coronary artery disease in as many as 40 percent of patients, according to a study published today on the cover page of the Journal of Nuclear Medicine.

4 Jul 2007

Hearing loss and von Hippel-Lindau disease

Patients with the genetic disorder von Hippel-Lindau disease may suddenly experience hearing loss because of a tumor-associated hemorrhage in the inner ear, according to a study in the July 4 issue of JAMA.

4 Jul 2007

Harnessing the power of the immune system to fight cancer

Teaching a body's own immune system to seek out and destroy cancerous tumours represents a promising way to fight a disease that kills more than 70,000 Canadians a year.

4 Jul 2007

The next era of cancer treatment

Teaching a body's own immune system to seek out and destroy cancerous tumours represents a promising way to fight a disease that kills more than 70,000 Canadians a year.

4 Jul 2007

High dose rate brachytherapy treatment for prostate cancer

Up to 79% preservation of potency and less than 2% incontinence are the striking results of a clinical study in which over 300 men received an innovative treatment for prostate cancer.

29 Jun 2007

Femoro-acetabular impingement may not always cause osteoarthritis in some racial groups

Osteoarthritis is the most common joint disorder worldwide, yet the cause of osteoarthritis of the hip is still unknown.

29 Jun 2007

Multiple-electrode radiofrequency ablation safe and effective way of treating patients with liver cancer

Multiple-electrode radiofrequency ablation is a safe and effective way of treating patients with liver cancer that can be completed in less time than current ablation techniques, according to a recent study conducted by researchers at the University of Wisconsin in Madison.

29 Jun 2007