Pediatric radiology is a subspecialty concerned with children’s radiology and the radiological manifestations of diseases of children. A pediatric radiologist is an expert in the diagnosis of illnesses, injuries, and diseases of infants, children, and adolescents, using imaging techniques and equipment. The Alliance for Radiation Safety in Pediatric Imaging urges pediatric radiologists to use lower dose radiation in the CT imaging of children.
MRI, by detecting changes in a specific area of the brain, may be able to predict which children will later develop epilepsy after suffering fever-related seizures, according to new research.
The finding, published last month in The Journal of Neuroscience, is based on studies of rats, so considerable work remains before the technique could possibly reach clinical use. But the marker seems promising … read more »
Even loss of consciousness from a blow to the head is not by itself reason enough to give a child a cranial CT scan, according to research published online Monday in JAMA Pediatrics.
Nathan Kuppermann, MD, senior author of the article and principal investigator for the Pediatric Emergency Care Applied Research Network (PECARN), from which the article’s data and analysis were derived, summarized the research … read more »
State regulation of radiologic technologists has “little impact on public health and safety” and should be abolished, according to a staff report of an agency of the Texas Legislature.
Christine Lung, vice president of government relations and public policy for the American Society of Radiologic Technologists, begs to differ:
Everyone knows that radiation is a carcinogen. If performed incorrectly, it’s a direct … read more »
Newer CT scanners drastically reduce the amount of radiation exposure for patients, according to a new study that involved nine sites in the United States and Saudi Arabia.
The researchers compared radiation exposure from first-generation 64-slice single-source and dual-source scanners to that from the new generation of 128-slice dual-source scanners with high-pitch capability. The newer machines reduced overall dosage by 61 … read more »
An international team of researchers has found a way to make iron oxide nanoparticles behave usefully for both MRI imaging and treatment of tumors: encase them inside larger silicon and polymer particles.
That creates versatile iron oxide composites that can act as MRI contrast agents, be manipulated with magnets, be heated, and degrade quickly. Normally, you would need different sizes of … read more »
A breakthrough at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory in Berkeley, California, could lead to high-frequency ultrasound imaging with up to 1,000 times higher resolution than today’s medical ultrasounds.
Xiang Zhang, PhD, summed up the research this way:
We have demonstrated optical coherent manipulation and detection of the acoustic phonons in nanostructures that offer new possibilities in the development … read more »
Here are three headlines from medical websites:
“Lifetime cancer risks from X-rays for children ‘relatively low'”
“Imaging Hikes Ca Risk in Kids With Heart Disease”
“Kids with complex heart disease at higher risk of imaging-induced cancer”
Each headline (from, respectively, Medical News Today, MedPage Today, and Health Imaging) refers to the same study, conducted by researchers at Duke University. Circulation published an article about it online on … read more »
Computer simulations indicate that, for the most part, new gamma and neutron imaging techniques would be safe, delivering roughly the same radiation dosages as X-rays or CT scans—at least while imaging the liver or breast.
Researchers at Duke Medicine in Durham, North Carolina, came to that conclusion. And the new techniques offer advantages, said Anuj J. Kapadia, PhD, assistant professor of … read more »
Brain scans show that puberty brings changes in brain blood flow: it decreases for boys but increases for girls.
That could explain a lot.
A group led by researchers at Perelman School of Medicine at the University of Pennsylvania used arterial spin labeled MRI to image the brains of 922 youths, ages 8 through 22. Earlier studies had shown that cerebral blood … read more »
A contraption that shines dozens of tiny LED lights on the outside of the head actually works as a brain scanner, according to researchers at Washington University School of Medicine in St. Louis.
The researchers say they can get reliable data to a depth of about one centimeter of tissue. That’s enough, they say, to reach areas involved with many higher … read more »