Ultrasound breakthrough

Electrical and computer engineers at Carnegie Mellon University have developed a novel way of using ultrasound for noninvasive imaging deep inside the body.  “[They claim] . . . a radical approach to use the target medium itself to sculpt and shape a virtual GRIN [graded-index] lens using ultrasonic waves that can propagate through the medium non-invasively, thus providing an alternative to implanting an invasive, bulky physical GRIN lens. In contrast to physical GRIN lens implants that are limited to imaging from fixed positions in tissue, the ultrasonically sculpted optical relay lenses can be reconfigured dynamically to scan and image a 3D volume non-invasively, thus preventing an inflammatory tissue response that would happen when repositioning a physical GRIN lens in the tissue.”   MORE

Image Credit:  Carnegie Mellon University