ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,745,967, issued on Sept. 29, was assigned to The Trustees of the University of Pennsylvania (Philadelphia) and Real Time Tomography LLC (Villanova, Pa.).

"Dynamic four-dimensional contrast enhanced tomosynthesis" was invented by Andrew D. A. Maidment (Villanova, Pa.), Brian Lee (Rockville, Md.), Susan Ng (Villanova, Pa.), Peter A. Ringer (Allentown, Pa.), Johnny Kuo (Lancaster, Pa.) and Raymond J. Acciavatti (Newtown Square, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A contrast-enhanced digital tomosynthesis system with a source configured to emit penetrating particles toward an source, a positioning apparatus configured to position the source ...