US 12,268,546 B2
Information processing apparatus, information processing method, and program
Tomoko Taki, Kanagawa (JP)
Assigned to FUJIFILM CORPORATION, Tokyo (JP)
Filed by FUJIFILM CORPORATION, Tokyo (JP)
Filed on Feb. 24, 2022, as Appl. No. 17/679,105.
Application 17/679,105 is a continuation of application No. PCT/JP2020/026765, filed on Jul. 8, 2020.
Claims priority of application No. 2019-176894 (JP), filed on Sep. 27, 2019; and application No. 2020-104528 (JP), filed on Jun. 17, 2020.
Prior Publication US 2022/0175335 A1, Jun. 9, 2022
Int. Cl. A61B 6/00 (2024.01); A61B 6/12 (2006.01); A61B 6/50 (2024.01); G06T 7/00 (2017.01); G16H 30/40 (2018.01)
CPC A61B 6/5217 (2013.01) [A61B 6/12 (2013.01); A61B 6/505 (2013.01); G06T 7/0012 (2013.01); G16H 30/40 (2018.01); G06T 2207/10116 (2013.01); G06T 2207/30008 (2013.01); G06T 2207/30052 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising at least one processor, wherein the processor is configured to generate a bone part image in which a bone part of a subject is highlighted, from a first radiographic image and a second radiographic image acquired by radiation having different energy distributions transmitted through the subject;
derive a body thickness distribution of the subject;
obtain a correction coefficient corresponding to the body thickness distribution of the subject and the imaging conditions when the first and second radiographic images were obtained by referring to a lookup table that specifies the body thickness of the subject and the correction coefficient for various imaging conditions;
derive a bone mineral content for each pixel of the bone part image by multiplying the correction coefficient by the pixel value of the bone image;
based on a bone mineral content around an artificial object implanted in the bone part of the subject, derive information indicating a state of the bone part of the subject after the artificial object is implanted in the bone part of the subject, as postoperative information;
display the postoperative information on a display; and
wherein the processor is configured to derive a difference value or ratio value between a bone mineral content at a first position relative to the artificial object and a bone mineral content at a second position relative to the artificial object, as the postoperative information, wherein the first position and the second position are along a line from the artificial object, and wherein the first position is closer to the artificial object than the second position.