Weekly and Monthly Newsletter

What You Need to Know About DNA Testing 

THROUGH DIRECT-TO-CONSUMER ​genetic testing, it is now possible to get information about your genetic predisposition to certain illnesses without consulting a doctor. One test, made by 23andMe, was authorized in March 2018 by the U.S. Food and Drug Administration to...

New Breast Cancer Screening Imaging Method Finds Tumors in Seconds

Researchers said they developed a quicker, better and cheaper way than mammograms to detect breast cancer: A laser scanner that can find tumors in as little as 15 seconds. The near-infrared lasers shine pulses of light into the breast tissue, which, researchers report in a study published Friday in the journal Nature Communications, is more effective than traditional mammograms.

Technique may improve detection of breast tumors 

Researchers have been developing a new method for detecting breast cancer called photoacoustic computed tomography (PACT). The technique uses harmless pulses of laser light to penetrate the breast tissue. This causes a type of sound wave called photoacoustic waves to spread through the tissue. These waves can be measured by sensors surrounding the breast. Blood vessels react to the light differently, providing contrast that allows PACT to form clear images of the breast’s blood vessel network. This approach can be used to spot tumors because tumor growth depends on blood vessels.

New ‘Liquid Biopsy’ Shows Early Promise in Detecting Cancer

After performing all of the tests, the researchers found CancerSEEK was best at detecting stage II or III cancers, primary tumors that haven’t metastasized but are getting large. However, it still detected 43 percent of early stage I cancers. The test also detected some cancers better than others. In fact, the panel almost never missed a case of ovarian or liver cancer. But it wasn’t as good in picking up colorectal, lung, and breast cancers.

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