Latest X-ray Stories

(Ivanhoe Newswire) – X-rays have changed the way we look at medicine and strong technology is allowing us to make the process safer each year. A new study shows Cone beam CT is superior to mutidetector CT for detecting a small hole in the bony wall of the inner ear bone that can cause dizziness and hearing loss, and it uses half the radiation dose. The study, conducted in Bruges, Belgium, included 21 patients who had both a cone beam CT and a multidetector CT examination of their right...

Cone beam CT is superior to mutidetector CT for detecting superior semicircular canal dehiscence or the so called third window (a small hole in the bony wall of the inner ear bone that can cause dizziness and hearing loss) and it uses half the radiation dose, a new study shows. The study, conducted in Bruges, Belgium, included 21 patients who had both a cone beam CT and a multidetector CT examination of their right and left temporal bones, said David Volders, MD, one of the authors of the...

Low dose whole body CT is nearly four times better than radiographic skeletal survey, the standard of care in the U.S., for determining the extent of disease in patients with multiple myeloma, a new study shows. The study, conducted at the University of Maryland in Baltimore, included 51 patients who had both a radiographic skeletal survey as well as a low dose whole body CT examination. The total number of lesions detected in these patients with low dose whole body CT was 968 versus 248...

Using a decision support system for ordering chest CT examinations translates into positive examinations three-quarters of the time, a new study shows. The study, conducted at Massachusetts General Hospital in Boston, of 93,818 chest CT examinations done with the assistance of a decision support system, found that 76% of patients had a positive finding on their CT. "Rising concerns about radiation risks, imaging growth and reimbursement costs has highlighted inappropriate imaging use,"...

Astronomers using NASA's Chandra X-ray Observatory have found evidence for a population of old stellar black holes. The discovery provides new insight into the nature of stellar black holes, which is a class that can produce as much energy in X-rays as what a million suns could radiate at all wavelengths. The astronomers used Chandra to find an outburst that was produced by a black hole in the spiral galaxy M83, which is located about 15 million light years from Earth. Chandra helped...

WASHINGTON, April 30, 2012 /PRNewswire-USNewswire/ -- An extraordinary outburst produced by a black hole in a nearby galaxy has provided direct evidence for a population of old, volatile stellar black holes. The discovery, made by astronomers using NASA's Chandra X-ray Observatory, provides new insight into the nature of a mysterious class of black holes that can produce as much energy in X-rays as a million suns radiate at all wavelengths. (Logo:...

As more patients are referred to tertiary care center with previous images, a new study from researchers at the Westchester Medical Center shows how radiologists are tackling the challenges of interpreting outside studies and reviewing discordance opinions. "Outside studies were becoming a problem in our institution," said Dr. Zvi Lefkovitz, co-lead for this study. "We were receiving a lot of disjointed, fly-by-night examinations, and we had no formalized policy for reviewing these exams."...

PALO ALTO, Calif., April 26, 2012 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) announced today that its management will hold a mid-year review for investors from 11:30 a.m. through 1:30 p.m. on May 7, 2012 at the Intercontinental Times Square, 300 W. 44(th) St., New York. Management presentations will cover financial performance through the first half of fiscal year 2012, strategic initiatives, and growth opportunities in markets for oncology systems, x-ray imaging, and...

PALO ALTO, Calif., April 25, 2012 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) today is reporting results for the second quarter of fiscal year 2012 with net earnings of $0.94 per diluted share up 9 percent from $0.86 per diluted share in the second quarter of fiscal year 2011. The results for the second quarter of fiscal year 2012 include a $2.5 million or $0.02 per diluted share restructuring charge associated with realigning resources to address growth prospects in emerging...

By employing powerful X-rays that can see down to the molecular level of organic materials used in printable electronics, researchers are now able to determine why some materials perform better than others. Their findings, published in the journal Nature Materials, could lead to cheaper, more efficient printable electronic devices. "This work is exciting because it helps reveal in new detail how we can achieve high performance transistors and solar cells with polymers," said UC Santa...