Photoacoustic Imaging Uses Sight, Sound For Cancer Detection

An anonymous reader writes "A new imaging technique combines light and sound to create detailed, color pictures of tumors deep inside the body. It's hoped the technology, called photoacoustic tomography, will help doctors diagnose cancer earlier than is now possible and to more precisely monitor the effects of cancer treatment — all without the radiation involved in X-rays and CT scans or the expense of MRIs. By combining sounds and light, the technology can penetrate the body's tissues to visualize tumors at depths never before possible."