New CT-derived functional imaging software enhances lung diagnosis without contrast dye. ... by measuring and finding blood mass changes with a simple non-contrast, inhalation and exhalation CT scan.

Nov. 10, 2005 — -- Colleen Crayton smoked for more than 40 years before she quit. After hearing of Peter Jennings' battle with lung cancer, she decided to ask for a CT lung scan even though ...

CT scans are also expensive - about $300 per scan - and could place a heavy burden on the country's health care system if they were routinely offered to people at risk for lung cancer ...

Dec. 16, 2002 — Contrast causes an artifactual increase in lung tissue on computed tomography (CT) by leaking into lung parenchyma and increasing extravascular lung water, according to a report ...

The government is unlikely to shell out more than $200 million—the cost of the lung cancer study—until full-body CT scan proponents can show persuasive evidence of a positive effect.

Only five months after a major study recommended routine use of CT scans to detect lung cancer, a second study recommends the opposite, concluding that the scans do not save lives.

Until recently, CT scans were not recommended for smokers without cancer symptoms because the higher radiation dosage posed too many risks, said Dr. Areta Pidwerbetsky of Schenectady Radiologists ...