Researchers have developed a fiber optic probe that can detect errant cancer cells within healthy tissue during brain tumour surgery with close to 100 percent accuracy and sensitivity. Termed as Raman spectroscopy probe, the hand-held, pen-like instrument can differentiate between cancer cells and healthy cells by measuring the way each reflects laser-based light. The process involves optics and computer science and takes less than 10 seconds. Hence, it allows neurosurgeons to target malignant cells for removal without having to send a tissue sample to the pathology lab and wait at least half an hour for its assessment. The probe, which has since been refined and is now coupled with additional and improved optical technologies, makes it capable of pinpointing not only primary brain cancer cells, but those from tumours elsewhere in the body that have spread, or metastasized, to the brain. Read more about this news or go back to the original post here.

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