Cardiac blood flow imaging system based on augmented reality navigation and navigation image generation method

By using an augmented reality-based cardiac blood flow imaging system, which utilizes closed-loop control triggered by electrocardiogram signals and real-time ranging, high-fidelity, quantitative blood flow imaging and intuitive navigation are integrated. This solves the problem of frequent line-of-sight switching required for imaging results in existing technologies, thereby improving the precision and safety of surgery.

CN122398463APending Publication Date: 2026-07-17TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Filing Date
2026-03-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing cardiac blood flow monitoring equipment cannot achieve high-fidelity, quantitative blood flow imaging during surgery, and the imaging results require doctors to frequently switch between the surgical field of view and the display screen, which increases cognitive load and affects the accuracy and safety of the surgery.

Method used

An augmented reality-based cardiac blood flow imaging system is adopted. Through ECG signal triggering, real-time ranging, and closed-loop control of the focusing motor, active compensation of laser speckle images is achieved. The system also utilizes a spatial mapping matrix to project blood flow information onto the heart surface in situ, achieving high-fidelity, quantitative blood flow imaging and intuitive navigation in one system.

Benefits of technology

It enables high-fidelity, quantitative blood flow imaging during cardiac surgery, reducing the need for doctors to switch between their field of vision and the display screen, lowering cognitive load, and significantly improving the precision and safety of the surgery.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122398463A_ABST
    Figure CN122398463A_ABST
Patent Text Reader

Abstract

The application provides a kind of based on augmented reality navigation heart blood flow imaging system and navigation image generation method, it is related to biomedical optical imaging technical field, the system includes: laser speckle image acquisition unit according to electrocardiogram ECG signal determines acquisition window, and after the imaging focus is actively compensated based on real-time ranging result in the acquisition window, laser speckle image sequence of heart surface is collected;Navigation image generation unit quantifies the degree of stenosis of blood vessel according to blood flow index, and generates blood flow navigation image in combination with laser speckle image sequence;Navigation image projection unit projects blood flow navigation image to the corresponding blood vessel area of heart surface.The application provides based on augmented reality navigation heart blood flow imaging system and navigation image generation method, not only realizes high-fidelity, quantitative blood flow imaging and intuitive, in situ surgical navigation integration, also significantly improves the precision and safety of coronary artery bypass grafting and other heart surgery.
Need to check novelty before this filing date? Find Prior Art