Emergency radiology is devoted to diagnostic imaging of emergency trauma and non-traumatic emergency conditions. Emergency radiology is a subspecialty recognized by the American College of Radiology that advances diagnosis and treatment of acutely ill or injured patients by means of medical imaging.
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 »
The idea sounds weird, and the execution looks even weirder. Swedish researchers thought sending cell phone–frequency radiation through the brain could diagnose stroke. So they built a helmet with 12 microwave transceivers, each with a wire attached, so that the whole thing looks like some sort of medium-tech Medusa.
It’s called Strokefinder. Designer Mikael Persson, PhD, explained the genesis 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 »
Ultrasound performs as well as CT in evaluating emergency department patients suspected of having kidney stones, according to new research presented last month at the American Urological Association annual meeting in Orlando, Florida.
Marshall Stoller, MD, professor and vice chair of urology at the University of California, San Francisco, and colleagues reported on a randomized trial. At 15 U.S. academic medical centers, … read more »
University of Michigan researchers may finally have figured out how to use terahertz rays for imaging—by converting them into ultrasound.
The terahertz band lies between microwaves and infrared light on the electromagnetic spectrum. (From left to right, longer to shorter wavelengths, the spectrum is radio waves, microwaves, terahertz waves, infrared waves, visible light waves, ultraviolet waves, X-rays, and gamma rays.) We’ve … read more »
Boosting a protein response in intestinal cells helps mice survive potentially fatal doses of radiation, according to a new study by researchers in the radiation oncology department of the Stanford University School of Medicine.
The procedure offers at least partial protection even if administered up to 24 hours after radiation exposure. So it might not only help patients recover from therapeutic … read more »