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study was the basis for the Food and Drug Administration's approval
of Riverain's chest X-ray CAD technology.(3)
-- Researchers at the University of Chicago used Riverain's CAD to
analyze chest X-rays from patients whose lung cancer was initially
missed by radiologists; CAD identified 37 percent of the missed
cancers for which radiologists would have recommended further
diagnostic testing.(4)
-- Researchers at the University of Maryland conducted a similar study
that also included patients from the VA hospital. The results
indicated that chest X-ray CAD properly identified cancers in 37
percent of the patients whose cancers were missed.(5) In both
studies of missed lung cancers, with the initial use of CAD, these
patients may have had their cancers diagnosed earlier.
Facts About Lung Cancer
Early Detection
-- Only 16 percent of lung cancer cases are detected while the disease
is still in a localized stage and most treatable. The five-year
survival rate increases from 16 percent to 49 percent when the
disease is detected in its earliest stages.(1)
-- The American College of Chest Physicians' (ACCP) guidelines
recommend a chest X-ray for patients with cough and risk factors
for lung cancer or metastatic cancer.(6)
-- Chest X-rays have been found to be effective at detecting
early-stage lung cancer while it is still treatable.(7)
-- Chest X-ray computer-aided detection (CAD) detects 16 percent more
solitary pulmonary nodules that may be early-stage lung cancer than
a radiologist would detect without CAD.(3)
Morbidity and Mortality
-- In 2007, an estimated 213,380 Americans will be diagnosed w
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