Chest X-rays don't prevent lung cancer death
According to a big government study challenging a once common type of screening the usual chest X-rays do not prevent fatal cases from lung cancer, not even in smokers or former smokers.
The study involved more than 150,000 older Americans, those who had four yearly chest X-ray screenings, so, possibly, will die of a cancer of lungs as participants who didn't have those tests.
The results from the National Cancer Institute-funded research confirm the previous, smaller X-ray studies. They follow another big study from that institute approving a newer, more difficult test of display. That found less fatal cases from lung cancer among current or former heavy smokers who had special CT imaging scans against those who had chest X-rays.
CT scans provide much more detailed images than X-rays, and while no major medical group recommends any type of usual lung cancer screening, prepare new supervising principles a little. Screening addresses to usual tests in people without symptoms; doctors say chest X-rays are still useful to help diagnose people with lung cancer symptoms, including a constant cough or coughing up blood.
“Chest X-ray screening for lung cancer was common decades ago, and some doctors continue to recommend it in smokers and former smokers. The new results of research should put an end to that practice,” said Robert Smith, director of cancer screening at the American Cancer Society.
"Nobody recommends it, but they really occur quite a lot," added Smith who hasn't been involved in research.
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