Name: Low-dose CT scan detects lung cancer early
Uploaded: 2025-11-13T02:43:29.943Z
Duration: 1 min 41 s
Description: A low-dose CT scan is more effective than chest X-rays, doctors say, when it comes to catching lung cancer.

A low-dose CT scan is more effective than chest X-rays, doctors say, when it comes to catching lung cancer.

Detroit

A low-dose CT scan is now being used to detect lung cancer at an earlier stage in individuals considered at high risk, primarily due to a history of smoking. According to Dr. Thomas Watson of Corwell Health, this method is more effective than chest x-rays at identifying small, potentially curable cancers, while also exposing patients to less radiation.

Screening is currently recommended for adults aged 50 to 80 who have smoked the equivalent of a pack a day for at least 20 years and are either current smokers or have quit within the last 15 years. Early detection through this screening can significantly improve survival rates, as lung cancer often presents no symptoms until advanced stages.

Low-dose CT scan detects lung cancer early

In HealthWorks, early detection is what saves lives when it comes to cancer. Lung cancer is our deadliest cancer in the U.S. There is a screening that can find it early in people who are at risk. Here's the problem with lung cancer. Often you have no idea it's there until it's too late. I get asked all the time, how could I have cancer? I feel totally normal. So that's the problem, is getting people in for a screening study when they're at risk. Corwell Health's Dr. Thomas Watson says smoking is the cause of lung cancer about 85% of the time, and for those people, there may be an early screening. It's a low-dose CT scan. It picks up little spots in the lungs much better than a chest x-ray can. Chest x-rays are good, but they don't pick up little things. So with CT scanning, we can pick up very small cancers at a curable stage. Low-dose means less radiation exposure. This scan is meant for people who meet certain risk factors. For lung cancer screening, we only recommend it to a high-risk group, and that's currently defined as people who've had a smoking history of at least 20 pack years. A pack year is a pack a day for a year, so people who've done that for 20 years. And between ages 50 and 80. And the third criterion is they have to be current smokers or have to have quit within the last 15 years. We're hoping to see that last criterion go away, but that's what it currently is. And for a thoracic surgeon like Dr. Watson, finding that cancer early is a tremendous advantage. Lung cancer is the biggest killer in the United States of both men and women, but it's highly dependent on the stage of the disease at the time of diagnosis. Too many cancers are diagnosed at an advanced stage with a very low cure rate. The doctor says this can be life-saving. If you want to look into scheduling that screening, you can find more information on the Corwell website, corwellhealth.org, on that lung cancer page. That's HealthWorks. I'm Dena Centifanti.

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