Imaging News and Research

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Nanoparticles reveal tiny cancerous tumors

Specially designed nanoparticles can reveal tiny cancerous tumors that are invisible by ordinary means of detection, according to a study by researchers at Washington University School of Medicine in St. Louis.

22 Apr 2005

Gene may boost schizophrenia risk

Clues about how a suspect version of a gene may slightly increase risk for schizophrenia are emerging from a brain imaging study by the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH). The gene variant produced a telltale pattern of activity linked to production of a key brain messenger chemical.

21 Apr 2005

“Virtual Colonoscopy” effective in finding most polyps but may miss small ones

A type of noninvasive “virtual colonoscopy” can diagnose medium to large polyps as well as traditional colorectal probes can, but it may miss some smaller yet potentially cancerous growths, according to a new review of studies.

21 Apr 2005

Researchers study radiation blockers while conducting nuclear imaging of Iodine uptake in mouse tissues

Scientists have found that a dose five times higher than the FDA-recommended dosage of potassium iodide in the event of a nuclear accident is needed to protect small animals effectively from radioactive iodide in medical imaging procedures. The long-term animal nuclear imaging project is being conducted by a collaboration of biology and physics researchers from the Department of Energy's Jefferson Lab and The College of William & Mary (CWM).

20 Apr 2005

Discovery of brain's first known 'safety circuit' gives new perspective on anxiety disorders

Scientists at Columbia University Medical Center have made a surprising finding about positive emotions that should change the way people think about anxiety disorders.

20 Apr 2005

New approach to fighting cancer, based on nanoscale particles

Researchers at Rice University in Texas have developed a new approach to fighting cancer, based on nanoscale particles that can both detect and destroy cancerous cells. The report appears in the April 13 issue of the American Chemical Society's journal Nano Letters.

13 Apr 2005

Technology helps Stanford shed new light on coronary bypass surgery

On March 31, Joel Dyels celebrated his 72nd birthday by having coronary bypass surgery at Stanford Hospital. He also became the third patient at Stanford - and in the United States - to benefit from a new imaging system that lets doctors see the blood pathways they have created while the patient's chest is still open.

12 Apr 2005

New optical method will help diagnose various types of skin cancers

A new optical method that can image subsurface structures under skin has been demonstrated by scientists at the National Institute of Standards and Technology (NIST) and the Johns Hopkins University Applied Physics Laboratory.

12 Apr 2005

Novel findings in Balo's concentric sclerosis may shed light on pathology of MS

Researchers partly funded through the National MS Society’s “MS Lesion Project” report that a novel mechanism known as “tissue preconditioning” may explain the pattern of tissue damage that occurs in Baló’s concentric sclerosis, a rare, severe disease similar to MS, and may offer clues to a similar phenomenon in MS. Hans Lassmann, MD (Medical University of Vienna, Wien) and colleagues, including Society grantee Claudia Lucchinetti, MD (Mayo Clinic and Foundation, Rochester, MN), report their findings in Brain.

12 Apr 2005

Innovation, competitive prices to underpin uptake of diagnostic ultrasound devices

Across Europe, the pricing of ultrasound systems is expected to be central to its uptake. In addition to being competitively priced, products with an emphasis on innovation, user-friendliness, mobility and compactness are also expected to appeal to end-users.

12 Apr 2005

Research challenges the traditional explanation for the causes of diastolic heart failure

New research from Columbia University Medical Center is challenging the traditional explanation for the causes of the most common type of heart failure, traditionally called diastolic heart failure.

12 Apr 2005

Public-health efforts to increase the use of breast-cancer screening appear to have altered the types of breast cancer being diagnosed

Since 1980, the incidence of ductal carcinoma in situ, or DCIS, one of the most common kinds of early stage breast cancer, has increased more than sevenfold. This sharp increase in DCIS – which is a tumor that contains cancer-like cells but is not considered "true" cancer because the cells have not invaded normal breast tissue – has been accompanied by a flattening in the incidence of true invasive breast cancer.

11 Apr 2005

Moderate levels of exercise may not be enough to control mild hypertension

Moderate levels of exercise may not be enough to control mild hypertension in men and women over age 55, the age group most at risk of later developing potentially fatal heart failure, a new four-year study reports. The findings by researchers at Johns Hopkins, to be published in the journal Archives of Internal Medicine online April 11, call into question the effectiveness of national guidelines on exercise for lowering blood pressure in older people.

11 Apr 2005

Electronic nose can be used to detect early evidence of lung cancer

The electronic nose, a device long used for safety and quality control in the food, wine and perfume industries, also can be used to detect early evidence of lung cancer, according to research conducted at The Cleveland Clinic.

7 Apr 2005

Molecular motors cooperate in moving cellular cargo

Researchers using an extremely fast and accurate imaging technique have shed light on the tiny movements of molecular motors that shuttle material within living cells. The motors cooperate in a delicate choreography of steps, rather than engaging in the brute-force tug of war many scientists had imagined.

7 Apr 2005

Osteoporosis drug reduces women's risk of mild cognitive impairment

A drug prescribed for the prevention of osteoporosis reduced women's risk of mild cognitive impairment by 33 percent in a worldwide clinical trial led by researchers at San Francisco VA Medical Center (SFVAMC).

6 Apr 2005

Scientist finds different paths lead to similar cognitive abilities

Despite the divergent evolutionary paths of dolphins and primates -- and their vastly different brains -- both have developed similar high-level cognitive abilities, says Emory University neuroscientist and behavioral biologist Lori Marino.

5 Apr 2005

How heart is formed in the embryo helps explain congenital heart disease

Children's Hospital of Pittsburgh Cardiologist Bradley B. Keller, MD, and his research team are discovering details in the lab that explain how the heart is formed in the embryo. This knowledge improves the chances of doctors identifying fetuses who can benefit from intervention to treat congenital defects.

5 Apr 2005

Genomics and proteomics to increase the efficiency of drug discovery and development

While the United Sates is still the world leader, Europe is having a good deal of success in the field of advanced genomics and proteomics research. Significant government funding together with the presence of large pharmaceutical companies has made Europe a major competitor in the efforts to deploy genomics and proteomics as vital tools in drug discovery and development.

5 Apr 2005

Immune cells in the liver travel in the liver's blood vessels with surprising speed and agility

Scientists at New York University School of Medicine viewing the actual journey of immune cells in the liver have found that these cells travel in the liver's blood vessels with surprising speed and agility.

4 Apr 2005