ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,220, issued on Aug. 12.
"Geometric calibration marker detection in spectral tomosynthesis system" was invented by Jay S. Schildkraut (Rochester, N.Y.), Jean-Marc Inglese (Bussy-Saint-Georges, France) and Subramanyan Krishnamoorthy (Penfield, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for geometric calibration of a volume imaging apparatus disposes calibration phantom in a radiation path that includes a subject positioned between an x-ray source and a detector. The phantom has a number of radio-opaque markers formed of a marker material. In a repeated sequence, at each of a number of positional relationships of the x-ray source to t...