US 12,433,559 B2
Radiation image processing device, radiation image processing method, and radiation image processing program
Tomoko Taki, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jul. 10, 2023, as Appl. No. 18/349,453.
Claims priority of application No. 2022-112633 (JP), filed on Jul. 13, 2022.
Prior Publication US 2024/0016464 A1, Jan. 18, 2024
Int. Cl. A61B 6/00 (2024.01)
CPC A61B 6/5217 (2013.01) [A61B 6/481 (2013.01); A61B 6/5282 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A radiation image processing device comprising:
at least one processor,
wherein the processor
acquires two radiation images based on radiation that is transmitted through a subject including a plurality of compositions and has different energy distributions from each other,
derives body thicknesses of the subject as a first body thickness and a second body thickness, respectively, for each pixel for each of the two radiation images by using an attenuation coefficient according to an order in which the radiation is transmitted through the plurality of compositions, and
derives a composition ratio of the subject for each pixel of the radiation image based on the first body thickness and the second body thickness.