CT: Page 389

Preprocessing increases lossless compression of chest CT data
By Erik L. Ridley
A preprocessing technique can increase the compressibility achievable from lossless compression of thin-section chest CT images, according to research published online in Radiology. The technique could help sites handle the large data volumes produced by MDCT scans.
March 22, 2011
New attention for radiation protection drugs; managing radiologist-RT relationships
By Brian Casey
March 21, 2011
Japan crisis spotlights radiation protection drugs
By Eric Barnes
Americans worried about the nuclear crisis in Japan have cleared store shelves of potassium iodide as they seek protection from radiation-laced fallout. The frenzy has also drawn attention to specialized drugs and nutritional formulas designed to protect individuals from environmental radiation -- and prevent harm from medical imaging and radiation therapy.
March 21, 2011
iPad may be able to support emergency brain CT interpretation
By Erik L. Ridley
Apple's iPad has the hardware power to support preliminary interpretation of emergency brain CT studies, but an inability of current software to access patient information and previous imaging can lead to some missed findings, according to researchers in Ireland.
March 20, 2011
Fast 320-row CT produces lower dose in pancreas
By Eric Barnes
The image quality of contrast-enhanced CT scans of the pancreas was pretty much equivalent between fast 320-detector-row contrast-enhanced scans of the pancreas and 64-detector-row scans, according to a new study in Radiology. But there were some differences, notably far lower radiation doses with the 320-row scans.
March 17, 2011
VC study turns in high positive predictive value
By Eric Barnes
A new study shows that virtual colonoscopy delivers a high positive predictive value for the identification of patients with clinically significant polyps, reinforcing the results of earlier studies concluding that VC can predict the need for conventional colonoscopy and polypectomy with few false-positive detections.
March 15, 2011
A chat with Dr. David Levin; more CT brain perfusion woes
By Brian Casey
March 9, 2011
Computer-assisted markup more accurate for lung nodules
By Eric Barnes
What's the best way to measure lung nodules at follow-up CT? Researchers from Weill Cornell Medical College say that computer-assisted markup shows less variability than manual drawing of the nodule; accuracy is also aided by comparing more recent scans with prior scans side by side.
March 9, 2011
CT brain perfusion patients overradiated at W. Va. hospital
By Kate Madden Yee
Patients at Cabell Huntington Hospital in West Virginia have received exposure to radiation above recommended levels during CT brain perfusion scans, according to a hospital statement released March 3.
March 8, 2011
Siemens adds dose monitoring to CARE
By AuntMinnie.com staff writers
Siemens Healthcare is adding radiation dose analysis to its CARE (combined applications to reduce exposure) portfolio, the company said.
March 8, 2011
Mayo: Cancer patients OK extra exams
By AuntMinnie.com staff writers
Cancer patients are willing to undergo many tests, including high radiation dose CT and PET exams, to receive advanced experimental treatments in clinical trials, according to a new study.
March 6, 2011
CIRTACI: 40% of contrast agent reactions are true allergies
By Wayne Forrest
VIENNA - A 54-month prospective study in France has found that 40% of immediate hypersensitive reactions to the administration of iodine- and gadolinium-based contrast agents are true allergies, according to a Monday presentation at the European Congress of Radiology.
March 6, 2011
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