Early Cancer Detection

A new type of imaging tool has been developed that could enable earlier detection of breast cancer. While traditional mammography uses X-rays to generate a two-dimensional image, the new device, known as a photoacoustic mammoscope, combines infrared light and ultrasound to produce a 3-dimensional map of the breast.

It works by delivering pulsations of infrared light to the tissues where it is absorbed by the blood. This increases the temperature in the blood vessels, causing them to expand and generate ultrasonic waves. The image of the underlying vasculature is similar to other ultrasound images, and tumors can be distinguished from normal tissue by the larger concentration of vessels present.

The researchers are currently preparing for clinical trials to begin next year. If approved, it could replace costly MRIs and eliminate the dangers of repeated exposure to X-rays for breast cancer detection.