Method and apparatus for correcting blood flow velocity on the basis of interval time between angiogram images
US12207961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2022 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Mar 6, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30104
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure provides a method for correcting a resting blood flow velocity on the basis of an interval time between angiogram images, comprising: acquiring, in an angiography state, an average blood flow velocity Vh from a coronary artery inlet to a distal end of a coronary artery stenosis (S100); acquiring a time difference Δt between start times of two adjacent bolus injections of contrast agent (S200); obtaining a correction coefficient K according to the time difference Δt (S300); obtaining a resting blood flow velocity Vj according to the correction coefficient K and the average blood flow velocity Vh (S400), as well as an apparatus configured for implementing the above method. The disclosure obtains the resting blood flow velocity Vj according to the correction coefficient K and the average blood flow velocity Vh.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.