A study looking at a new technique that may help to diagnose and remove primary brain tumours more accurately

This study is looking at a new technique called Raman spectroscopy which uses a laser light during surgery to remove primary brain tumours.

Doctors often treat brain tumours with surgery. They try to remove all of the tumour, or as much of it as possible.

It can sometimes be difficult for doctors to clearly see the border of the brain tumour with their naked eye or with the use of a microscope. This may lead to some of the tumour being left behind, increasing the risk of it growing back again. There is also a risk that some normal brain tissue is removed, causing side effects. Researchers are looking for ways to improve surgery to make it more accurate.