Douglas Boyd, PhD, founder/director of Imatron and InVision Technologies has joined the board of directors of TechniScan Inc., a developer of ultrasound imaging technology for breast cancer diagnosis. He was the primary inventor of electron beam tomography, the technology that underlies Imatron and InVision Technologies products.

General Electric Co. has acquired Imatron and has agreed to acquire InVision Technologies.

Boyd is chief scientist at GE-Imatron, and currently sits as an outside director for InVision and HeartScan Imaging Centers, as well as on several private company boards. Boyd, a former professor of radiology at the University of California, San Francisco, also holds several early patents for computed tomography (CT) scanning filed during his tenure at Stanford University as a research associate in the physics department.