Chest radiology is a subspecialty concerned with the diagnostic radiology of diseases of the thorax, especially the heart or lungs. Chest radiology, which includes chest angiograms and chest P.E.T scans, is a subspecialty recognized by the American College of Radiology.
Time inevitably brings change. More than six and a half years after Radiology Daily began, this is the final post. Don’t worry! Launching next month will be a free, time-saving monthly e-newsletter, Oakstone’s new Highlights in Radiology. Here’s a taste of what you’ll get:
Insights from respected colleagues in the field of radiology and diagnostic imaging
Physician reviews of—and commentary on—radiology-related articles from … read more »
A health-insurance company’s “price transparency program” succeeded in driving insured patients to less-expensive MRI facilities and away from hospital-based facilities, according to an article in the current edition of Health Affairs.
The insurer was WellPoint. One of its subsidiaries commissioned the study, and another conducted it. The study looked at more than 100,000 members of WellPoint health plans from 2010 through 2012. … read more »
One of the things holding back wider acceptance of low-dose CT screening for lung cancer has been the high false-positive rate—between 20 and 50 percent. But a study published online Friday in Cancer indicates that false positives don’t seem to bother those being screened. The lesson, apparently, is to emphasize the “informed” part of informed consent.
Ilana F. Gareen, PhD, lead author … read more »
The emerging field of radiomics—the extraction and analysis of “hidden” data from large amounts of medical images—could help doctors more accurately choose the precise radiation therapy doses necessary to kill tumors, according to a study presented today at the 56th Annual Meeting of the American Association of Physicists in Medicine in Austin, Texas.
Joseph O. Deasy, PhD, senior author of the … read more »
The discovery by University of Wisconsin researchers of genes that are necessary for surviving high levels of radiation has potentially big implications for imaging and radiation therapy.
The researchers developed a highly radiation–resistant strain of Escherichia coli by exposing cultures of the bacterium to extreme doses of radiation. “We blasted the cultures until 99 percent of the bacteria were dead,” said Michael M. … read more »
Big price increases for two radiotracers have led imaging facilities to look for alternatives, with at least some success. The tracers are used in ventilation/perfusion scans of patients with suspected pulmonary embolism.
As we reported in May, Jubilant DraxImage of Montreal increased the prices of macroaggregated albumin (MAA) and diethylenetriamine pentaacetate (DTPA). The company is the sole North American manufacturer of both. … read more »
A new type of nanoparticle actively seeks out cancer cells, then automatically assembles itself into clumps large enough to clearly show up on MRI scans.
Researchers at Imperial College London created the nanoparticle to increase both the sensitivity and specificity of MRI in detecting small, early-stage tumors. Nicholas J. Long, PhD, the Sir Edward Frankland BP Chair of Inorganic Chemistry, explained … read more »
Mayo Clinic and 10 other institutions from around the United States are leading an effort to institute a national protocol to limit radiation dosage when imaging children.
Representatives of the institutions published an invited commentary titled “An Appeal for Safe and Appropriate Imaging of Children” online last week in Journal of Patient Safety. Lead author Stephen J. Swensen, MD, a radiologist at … read more »
CT scans of two 40,000-year-old but nearly intact woolly mammoth mummies have given paleontologists a wealth of insights about the extinct elephant species to which they belong.
The frozen, mummified female carcasses were found in 2007 and 2008, 3,000 miles apart, in Siberia. They were just babies; “Khroma” was slightly less than two months old and “Lyuba” a month old when … read more »
A CT technique can accurately analyze lung tumors and guide treatment without the necessity for a biopsy or other invasive procedures, according to research chronicled in an article published last week by the online journal PLOS ONE.
In a study involving tissue samples from 48 patients with non–small cell lung cancer (NSCLC), quantitative CT-based texture analysis (QTA) determined with 89.6 percent accuracy … read more »