The glasses could reduce the need for additional surgical procedures and subsequent stress on patients, as well as time and expense.
Margenthaler said about 20 to 25 percent of breast cancer patients who have lumps removed require a second surgery because current technology doesn't adequately show the extent of the disease during the first operation.
"Our hope is that this new technology will reduce or ideally eliminate the need for a second surgery," she said.
The technology, developed by a team led by Samuel Achilefu, PhD, professor of radiology and biomedical engineering at Washington University, incorporates custom video technology, a head-mounted display and a targeted molecular agent that attaches to cancer cells, making them glow when viewed with the glasses.
In a study published in the Journal of Biomedical Optics, researchers noted that tumors as small as 1 mm in diameter (the thickness of about 10 sheets of paper) could be detected.
Ryan Fields, MD, a Washington University assistant professor of surgery and Siteman surgeon, plans to wear the glasses later this month when he operates to remove a melanoma from a patient. He said he welcomes the new technology, which theoretically could be used to visualize any type of cancer.
"A limitation of surgery is that it's not always clear to the naked eye the distinction between normal tissue and cancerous tissue," Fields said. "With the glasses developed by Dr. Achilefu, we can better identify the tissue that must be removed."
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