US 12,462,384 B2
Method and apparatus for enhancing lumen display in CT sectional image of blood vessel, and CT system
Xu Wang, Shanghai (CN); Yi Tian, Shanghai (CN); Zhen Yu Fei, Shanghai (CN); and Wei Zhou, Shanghai (CN)
Assigned to Siemens Healthineers AG, Forchheim (DE)
Filed by Siemens Healthineers AG, Forchheim (DE)
Filed on Jul. 17, 2023, as Appl. No. 18/222,615.
Claims priority of application No. 202210841816.1 (CN), filed on Jul. 18, 2022.
Prior Publication US 2024/0029244 A1, Jan. 25, 2024
Int. Cl. G06T 7/00 (2017.01); A61B 5/00 (2006.01)
CPC G06T 7/0012 (2013.01) [A61B 5/0033 (2013.01); A61B 5/0073 (2013.01); G06T 2207/10081 (2013.01); G06T 2207/20021 (2013.01); G06T 2207/30101 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for enhancing lumen displayed in a computerized tomography (CT) sectional image of a blood vessel, the method comprising:
obtaining an average CT value CTnearHeart of lumen sections proximate to a heart;
obtaining a highest CT value CThighest of a section of a blood vessel;
determining a window level based on the average CT value CTnearHeart and the highest CT value CThighest; and
displaying at least a portion of the section of the blood vessel in accordance with the determined window level by:
superimposing a further window on the window in which the at least the portion of the section of the blood vessel is displayed in accordance with the determined window level; and
displaying, in the further window, the at least the portion of the section of the blood vessel in accordance with the determined window level,
wherein the same pixels of the at least the portion of the section of the blood vessel on the window and the further window overlap with one another.