Nodules are found on up to half of all lung CT scans. When a pulmonary nodule is cancerous, the spot or growth is usually larger than 3 cm or has other characteristics like an irregular shape.

Nodules are found in up to half of adults who have a chest X-ray or CT scan of the lungs. But, less than 5 percent of all nodules turn out to be cancer. These spots are usually the result of old ...

Clinical tool classifies spots on lung scans of smokers Date: September 4, 2013 Source: Terry Fox Research Institute Summary: ... such as a repeat CT scan, a biopsy, or surgery, ...

"On a CT (scan) we see them all - all the tiny little details and all the tiny nodules on the lung, and 99 percent of those are nothing, are not cancer," said Dr. Heidi Roberts, a radiologist and ...

CT scans can also result in additional risks for the patient. Once a suspicious spot is found, invasive biopsies are usually ordered, which can result in infection or collapsed lungs.

Screening for lung cancer would mean many more CT scans being taken and we do not have enough radiologists to review them all. That's why we need to develop computer programs that can help.

Lung cancer is the second most common cancer in both men and women in the U.S. according to the American Cancer Society. It's also the leading cause of death from cancer because patients often don ...

The diagnostic use of low-dose spiral computer tomography over standard X-ray reduces the risk of dying from lung cancer by 20 percent in middle-age and elderly smokers, according to an article ...

A national study on lung cancer screening that detected treatable, early-stage tumours in 80 patients has been extended for two more years. Since the study began in 2008, CT scans done on 2,500 ...

Finding early signs of lung cancer was once next to impossible, but a new study adds to a growing body of evidence suggesting that screening with low-dose CT scans may help spot the beginnings of ...