Imaging News and Research

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Nanoscale dots target and track apoptosis

Apoptosis, or programmed cell death, is a hallmark effect triggered by effective anticancer drugs. Now, researchers in Korea have developed a biocompatible, fluorescent nanoparticle that could provide an early sign that apoptosis is occurring as a result of anticancer therapy.

23 Jul 2007

Chemotherapy beneficial for children with intracranial ependymoma

Use of chemotherapy to treat children with intracranial ependymoma avoids or delays the need for use of radiotherapy which can potentially cause serious damage to the child's nervous system, without compromising chances of survival.

23 Jul 2007

Neurons help find what your are looking for!

A person searching for a ripe tomato at the grocery store is more likely to notice apples, strawberries and other red fruits as well, according to a new study that measured changes in blood flow in the brain.

19 Jul 2007

New study explains placebo effect

Why do some people experience a “placebo effect” that makes them feel better when they receive a sham treatment they believe to be real — while other people don't respond at all to the same thing, or even feel worse?

19 Jul 2007

Researchers pinpoint brain region linked to placebo effect

Researchers have pinpointed a brain region central to the machinery of the placebo effect, the often controversial phenomenon in which a person's belief in the efficacy of a treatment such as a painkilling drug influences its effect.

19 Jul 2007

Cancer risk from radiation during cardiac CT scans studied

An analysis based on computerized simulation models suggests that the lifetime risk of cancer associated with radiation exposure from a computed tomography (CT scan) coronary angiography varies widely, with the risk greater for women and younger patients, according to a study in the July 18 issue of JAMA .

18 Jul 2007

Suped-up computed tomography scanners

By borrowing techniques used in telecommunications technology, computed tomography (CT) scanners may eventually see data collection speeds increase by hundreds of times, leading to better images, faster imaging procedures, and potentially lower x-ray exposures.

18 Jul 2007

New method for early disease diagnosis

Purdue University researchers worked with the Indiana University School of Medicine to establish a technique that provides a new approach for detecting a number of genetic disorders found in infants and young children.

18 Jul 2007

Advanced imaging algorithm makes for clearer ultrasound images

University of Virginia Engineering School Associate Professor William F. Walker and Research Associate Francesco Viola have developed a new tool - an advanced imaging algorithm - that is, quite literally, transforming the way we see things.

17 Jul 2007

Insulin resistance in skeletal muscle can be countered through exercise

Abdominal fat, the spare tire that many of us carry, has long been implicated as a primary suspect in causing the metabolic syndrome, a cluster of conditions that includes the most dangerous heart attack risk factors: prediabetes, diabetes, high blood pressure, and changes in cholesterol.

17 Jul 2007

Paint helps surgeons see where a tumor begins and ends

A tumor paint developed by researchers at Seattle Children's Hospital Research Institute and Fred Hutchinson Cancer Research Center will help surgeons see where a tumor begins and ends more precisely by illuminating the cancerous cells.

16 Jul 2007

Sports hernia repair technique coupled with innovative rehabilitation program speeds return to play

Surgical repair of athletic hernia using tension-free mesh and a standardized rehabilitation protocol are successful in returning athletes to competition, according to new research released at the 2007 Annual Meeting of the American Orthopaedic Society for Sports Medicine at the Telus Convention Center.

16 Jul 2007

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