Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

CT screening does not reduce risk of death from lung cancer

BioPhotonics
May 2007
Dr. Peter B. Bach from Memorial Sloan-Kettering Cancer Center in New York and his colleagues from other institutions have investigated whether low-dose CT screening would increase the number of lung cancer diagnoses, therefore reducing the risk of advanced lung cancer.

Previous studies of lung cancer screening with chest x-rays have shown that, although x-rays can identify small tumors that can be removed, they do not reduce the number of advanced lung cancer diagnoses and deaths. As reported in the March issue of JAMA, the researchers wanted to see whether CT screening — which is even more sensitive for detecting small nodules — might produce more hopeful results.

Annual CT scans were performed on 3246 current or former smokers for about 3.9 years at three academic medical centers — two in the US and one in Italy. The patients received scans for three to four years.

There were several more diagnoses of lung cancer than would have occurred without the CT screening — 144 diagnosed compared with an expected 44.5. And of those 144, 109 patients received surgical treatment, as compared with an expected 10.9 cases of surgery. However, there was no evidence that the screening reduced the number of diagnoses of advanced lung cancers or deaths — similar results to the chest x-ray screening studies.

The researchers believe that further study is needed on CT screening and on other imaging modalities. Until there is more evidence, they believe that CT screening should be considered experimental.


Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to BioPhotonics magazine - FREE!