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Surgical knife may sniff out cancer

from LiveScience

When a surgeon is removing a tumor, it's often hard to tell where the patient's cancer ends and the normal tissue begins — which is important in ensuring that all of the cancer is removed. Now, an experimental surgical knife aims to detect cancerous tissue as it cuts. Developed by researchers at Imperial College London, the intelligent knife, or "iKnife," sniffs out cancer cells in the smoke given off by tissue during electrosurgery, which uses an electrical current to rapidly heat and cut through the tissue. Surgeons could use the iKnife to determine whether the cells are healthy or cancerous in a matter of seconds, its creators say. more


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