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Virtual colonoscopy beats FOBT, flexible sigmoidoscopy

Double-read virtual colonoscopy is significantly more sensitive for detecting colorectal polyps than flexible sigmoidoscopy or the fecal occult blood test (FOBT), according to researchers from the Mayo Clinic in Rochester, MN. But a low prevalence of polyps may have hindered the radiologists' ability to find them.

February 20, 2003

Perfusion CT offers speedy access, but MRI gives the "big" picture

A picture is worth a thousand clinical diagnoses in the world of stroke neurology, but there is some disagreement about the best type of picture -- perfusion CT or MRI? This disagreement was played out in back-to-back oral presentations last week at the American Stroke Association’s International Stroke Conference in Phoenix.

February 18, 2003

U.S. to evaluate whether x-rays should be labeled carcinogens

By Kate Madden Yee

Wilhelm Conrad Roentgen’s discovery of x-rays in 1895 sparked great enthusiasm for the technology, and its ability to uncover mysteries of the human body. Now, more than 100 years later, the U.S. government has decided to investigate whether x-rays should be formally classified as carcinogens

February 17, 2003

CT aids in tPA triage for stroke patients

PHOENIX - CT is nearly ideal for selecting patients for recanalization therapy, according to a presentation Saturday at the International Stroke Conference, sponsored by the American Stroke Association.

February 16, 2003

E-Z-EM inks deal with SourceOne

By AuntMinnie.com staff writers

Virtual colonoscopy and contrast developer E-Z-EM has signed a national service agreement with distributor SourceOne Healthcare Technologies.

February 16, 2003

Study finds blacks have less coronary calcium than whites

A recent study in the Journal of the American College of Cardiology raises important questions about the role of race in the accumulation of coronary artery calcium (CAC), as well as its association to cardiovascular incidents.

February 16, 2003

CAD helps solve CT lung screening dilemma

CT lung cancer screening may sound like a great idea, but the reality of nodule detection is nettlesome. The target population is huge, the scans are tedious to read, and screening studies can produce boatloads of suspicious nodules, all of which must be followed up in a systematic fashion.

February 13, 2003

Lung CAD applications starting to outread radiologists

Radiologists who screen for lung cancer have one of the toughest jobs in the field. Help is on the way, however, in the form of emerging lung CAD applications that make CT lung screening more practical. At the RSNA meeting in Chicago, several groups presented their latest efforts to develop such applications.

February 12, 2003

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BodyScan buy-out falls through

By AuntMinnie.com staff writers

Financial management firm NewBridge Capital's bid to purchase the assets and business interests of BodyScan Imaging and its affiliates has been dissolved by mutual agreement. The deal had been slated for completion by mid-December 2002.

February 11, 2003

Vital Images turns in record Q4, first annual profit

By AuntMinnie.com staff writers

Three-dimensional-software developer Vital Images reported record fourth-quarter revenue and a profitable 2002.

February 10, 2003

Ground-glass lung lesions on CT are treatable with limited excision

By Edward Susman

Japanese researchers are relying on high-resolution CT to spot increasingly smaller lung lesions, according to a presentation at the 2002 Society of Thoracic Surgeons meeting in San Diego earlier this month.

February 9, 2003

Waist size predicts optimal CT dose in virtual colonoscopy

Conforming CT protocols to the patient's body mass can help determine the lowest radiation dose needed to provide diagnostic-quality images. Virtual colonoscopy providers in the Netherlands appear to have found a way to quantify the process without overcomplicating it.

February 6, 2003

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