Imaging News and Research

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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

Scientists create sheets of protein-gold arrays

In groundbreaking research, scientists have demonstrated the ability to strategically attach gold nanoparticles -- particles on the order of billionths of a meter -- to proteins so as to form sheets of protein-gold arrays.

28 Jun 2007

New model for signal transduction in cells

Among the key communication systems within a cell is the Wnt signaling pathway, which regulates embryonic development and whose deregulation can also contribute to cancer development.

28 Jun 2007

CARS microscopy reveals clues to myelin damage

Researchers have discovered that calcium ions could play a crucial role in multiple sclerosis by activating enzymes that degrade the fatty sheath that insulates nerve fibers.

28 Jun 2007

Training autistic brains to recognize visual and vocal cues

To understand the meaning of a conversation, kids automatically do what adults do - besides processing the meaning of words, they unconsciously "read" the expression on a person's face and listen to their tone of voice, then integrate that information with the context at hand to discern meaning, be it humor, anger, irony or straightforwardness.

28 Jun 2007