ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,055, issued on Aug. 19, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).

"Spectral dark-field imaging" was invented by Andriy Yaroshenko (Garching, Germany) and Thomas Koehler (Norderstedt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to an image processing device (1) comprising an input (2) for receiving image data representative of a region of interest in the body of a patient from a medical X-ray imaging apparatus (100). The image data comprises a first dark-field image obtained for a first X-ray spectrum and a second dark-field image obtained for a second, different. X-ray spectrum. A combinatio...