Laser Scanner Gives 3D View Inside Tumours

An ultrasound scanner that provides more detailed 3D images of the deformed blood vessels within a tumour could help doctors determine the boundary between cancerous and healthy tissue during surgery. The scanner uses a novel form of non-invasive imaging called photoacoustic tomography. This uses laser light to "twang" cells so they emit an ultrasound wave, which is then detected and used to form a 3D image.