US 11,684,239 B2
Method, system and computer readable medium for evaluating colonoscopy performance
Xiao Xiao, Chengdu (CN); and Jingjia Liu, Chengdu (CN)
Assigned to CHENGDU WISION MEDICAL DEVICE CO., LTD., Chengdu (CN)
Filed by Chengdu Wision Medical Device Co., Ltd., Chengdu (CN)
Filed on Mar. 2, 2021, as Appl. No. 17/189,321.
Claims priority of application No. 202011605719.X (CN), filed on Dec. 29, 2020.
Prior Publication US 2022/0202275 A1, Jun. 30, 2022
Int. Cl. G06K 9/00 (2022.01); A61K 35/12 (2015.01); A61B 1/00 (2006.01); A61B 1/31 (2006.01); G06T 7/00 (2017.01); G16H 40/20 (2018.01)
CPC A61B 1/00009 (2013.01) [A61B 1/0005 (2013.01); A61B 1/31 (2013.01); G06T 7/0012 (2013.01); G16H 40/20 (2018.01); G06T 2207/30028 (2013.01); G06T 2207/30168 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A computer-implemented method for evaluating colonoscopy performance, comprising steps of:
(S1) splitting a video acquired during a colonoscopy examination into a plurality of colonoscopy images;
(S2) assigning each of the colonoscopy images into an inadequate-view group or an adequate-view group according to a first classification criterion, and assigning each colonoscopy image in the adequate-view group into a fold-inspection group or a lumen-inspection group according to a second classification criterion,
wherein the first classification criterion comprises at least one of clarity, exposure, level of tissue wrinkling, and level of occlusion in each of the colonoscopy images; the second classification criterion comprises at least one of an amount of haustrum, an amount of colonic lumen, and a position of the colonic lumen in each of the colonoscopy images and
wherein the colonoscopy image in the adequate-view group is assigned into the fold-inspection group if the colonoscopy image meets one of the requirements of:
(R1) colonic wall is shown, but in absence of haustrum or colonic lumen;
(R2) colonic wall and haustrum are shown, but in absence of colonic lumen; and
(R3) colonic wall, haustrum and colonic lumen are shown, the amount of the haustrum shown falls within a range of 1 to 5, and the colonic lumen falls outside of a central area of the colonoscopy image; or
the colonoscopy image in the adequate-view group is assigned into the lumen-inspection group if the colonoscopy image does not meet any of the requirements of (R1)-(R3); and
(S3) determining a performance rating of the colonoscopy examination according to an elapsed time of at least one of the fold-inspection group, the lumen-inspection group, and the inadequate-view group.