Imaging technique could make brain tumour removal safer

A major challenge in surgically removing tumours, particularly in the brain, is to cut out as much cancer as possible while leaving healthy tissue alone.
Currently available imaging tools to aid doctors during brain surgery, such as MRI, are time-consuming, expensive and do not provide continuous guidance.
Researchers have developed a way of using a different imaging technology, called optical coherence tomography, to help surgeons quickly and safely distinguish healthy from cancerous tissue.

Brain surgery is famously difficult for good reason: When removing a tumour, for example, neurosurgeons walk a tightrope as they try to take out as much of the cancer as possible while keeping crucial brain tissue intact