Related Experiment Video
Updated: Sep 17, 2025
Blood Flow Imaging with Ultrafast Doppler
Published on: October 14, 2020
In Vivo Dynamic Coronary Arteries Blood Flow Imaging Based on Multi-Cycle Phase Clustering Ultrafast Ultrasound
Hao Yu1, Jiabin Zhang2,3, Feng Feng4
1College Of Engineering, Peking University, Beijing, 100871, China.
Insights
This study introduces a new ultrasound method to visualize cardiac blood flow, overcoming limitations of traditional Doppler imaging. It enhances the detection of coronary artery and chamber flows for better cardiovascular disease diagnosis.
Area of Science:
- Cardiovascular Imaging
- Biomedical Ultrasound Engineering
Background:
- Traditional Doppler echocardiography faces challenges with signal aliasing between myocardial tissue and blood flow.
- Low-velocity flows, such as coronary artery blood flow, are particularly difficult to detect due to overlapping signals.
Purpose of the Study:
- To develop a novel method for suppressing tissue clutter in cardiac ultrasound imaging.
- To achieve clear visualization of dynamic cardiac blood flow, including coronary and chamber flows.
- To enhance the spatial resolution of cardiovascular flow imaging.
Main Methods:
- A novel multi-cycle phase clustering method was developed for tissue clutter suppression.
- The new method abandons traditional Doppler-based imaging.
- Integration with super-resolution ultrasound reconstruction techniques was employed.
Main Results:
- Successfully extracted dynamic cardiac blood flow signals.
- Achieved clear visualization of coronary artery flow and cardiac chamber flow throughout the cardiac cycle.
- Enhanced spatial resolution in cardiac blood flow imaging was demonstrated.
Conclusions:
- The developed technique offers a paradigm shift from traditional Doppler imaging.
- This novel in vivo approach provides high spatio-temporal resolution, safety, and clinical accessibility.
- The method shows significant potential for advancing the diagnosis of cardiovascular diseases.
Abstract:
Echocardiography is the most primary clinical modality for dynamic cardiac imaging. However, the vigorous motion of myocardial tissue inherently causes inevitable signal aliasing between blood flow and myocardial tissue in traditional Doppler ultrasound imaging, constituting a persistent challenge in echocardiography for decades. Particularly for low-velocity flows like coronary artery blood flow, the Doppler frequency shifts completely overlap with myocardial tissue signal shifts, rendering them virtually undetectable through conventional echocardiography. This study pioneers a paradigm shift by abandoning traditional Doppler-based blood flow imaging, and develops a novel multi-cycle phase clustering method for tissue clutter suppression, successfully extracting dynamic cardiac blood flow signals with clear visualization of both coronary artery flow and cardiac chamber flow throughout the full cardiac cycle. Furthermore, through integration with super-resolution ultrasound reconstruction techniques, enhanced spatial resolution in cardiac blood flow imaging is achieved. This breakthrough establishes a novel in vivo cardiovascular flow imaging approach characterized by high spatio-temporal resolution, safety, and clinical accessibility, demonstrating significant potential for advancing the diagnosis of cardiovascular diseases.
More Related Videos
06:39Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
Published on: April 13, 2015
06:18Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
Published on: December 6, 2024