The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2023
Filed:
Sep. 19, 2019
Beijing Keya Medical Technology Co., Ltd., Beijing, CN;
Qi Song, Seattle, WA (US);
Ying Xuan Zhi, Seattle, WA (US);
Yuwei Li, Bellevue, WA (US);
Youbing Yin, Kenmore, WA (US);
Shubao Liu, College Park, MD (US);
Bin Ma, Bellevue, WA (US);
BEIJING KEYA MEDICAL TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
Method, system, device and medium for determining a blood flow velocity in a vessel are provided. An example method includes receiving a 3D model of the vessel, which is reconstructed based on X-ray angiography images of the vessel. The method further includes specifying a segment of the 3D model by a start landmark and a termination landmark. Moreover, the method includes determining the blood flow velocity based on length of the segment and perfusion time for the segment by normalizing the blood flow velocity to correspond to a cardiac cycle. The method has a better accuracy in calculating blood flow velocity, and requires no additional modalities other than the original X-ray angiogram sequences used to visualize coronary arteries.