ALEXANDRIA, Va., July 16 -- United States Patent no. 12,670,594, issued on June 30, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"System and method for evaluating a pulmonary ventilation and perfusion gradient" was invented by Rafael Wiemker (Kisdorf, Netherlands), Jorg Sabczynski (Norderstedt, Netherlands) and Cornelis Petrus Hendriks (Eindhoven, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for quantifying a pulmonary ventilation and perfusion gradient of a lung of a subject. Local Hounsfield density histograms are generated from computed tomography imaging data and each local histogram is cross-correlated with a global Hounsfield density histogram at ...