Multi-Angle Ultrasound Blood Supply Extraction for Microvessels
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Solution Overview
Problem
The accuracy of extracted tissue blood supply information using ultrasonic imaging is low due to limitations in data collection and processing methods, particularly in imaging microvessels with small diameters or low blood flow velocities.
Innovation Solution
Emit ultrasonic waves from a plurality of angles with overlapping imaging areas, using wide-beam waves and principal component decomposition of echo data to enhance data collection and processing accuracy, incorporating parallel processing for efficient decomposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultrasonic waves are emitted from a single angle using conventional methods, then the imaging process is simple and fast, but the accuracy of blood supply information extraction is low
Solution Approach 1:
The imaging process is segmented into multiple angle acquisitions, where ultrasonic waves are emitted from different angles (e.g., 0°, 60°, 120°) to capture blood flow information from multiple perspectives. Each angle provides complementary data that, when combined, significantly improves the accuracy of blood supply information extraction while maintaining manageable system complexity through sequential processing
Solution Approach 2:
The system transitions from single-angle imaging to multi-angle imaging by adding the angular dimension. This dimensional expansion allows the capture of blood flow vectors from different directions, enabling more accurate calculation of blood flow direction and velocity through spatial-temporal analysis of echo signals from multiple angles
2Productivity
If narrow-beam ultrasonic waves are used for imaging, then the imaging area is precise and focused, but the frame rate is low and microvessels cannot be effectively imaged
Solution Approach 1:
The system employs wide-beam ultrasonic waves that provide sufficient coverage of the imaging area, compensating for the reduced directional precision through multi-angle acquisitions. The wide beam ensures that microvessels within the imaging area are captured effectively, while the combination of multiple angle data maintains the precision needed for accurate blood flow measurement
Solution Approach 2:
The system merges data from multiple angle acquisitions to achieve both high frame rate and high accuracy. By combining ultrasonic echo signals from different angles (e.g., synthesizing images from 0°, 60°, and 120° acquisitions), the system reconstructs comprehensive blood flow information that overcomes the limitations of individual wide-beam acquisitions
3Measurement precision
If contrast agents are used for blood flow imaging, then the visibility of blood vessels is improved, but the method becomes invasive and requires additional substances
Solution Approach 1:
The system utilizes the natural backscattering properties of red blood cells themselves to generate detectable echo signals. By analyzing the temporal and spatial characteristics of these self-generated signals from multiple angles, the system achieves high-precision blood flow imaging without requiring any external contrast agents, making the method completely non-invasive
4Measurement precision
If multiple angle acquisitions are performed to improve accuracy, then the blood supply information precision is improved, but the time required for imaging increases
Solution Approach 1:
The system performs periodic ultrasonic wave emissions at different angles in a systematic sequence (e.g., alternating between 0°, 60°, and 120° acquisitions). This periodic multi-angle sampling strategy ensures complete data collection for accurate blood flow vector calculation while maintaining efficient imaging throughput through optimized acquisition sequencing
Solution Approach 2:
The system performs preliminary processing of ultrasonic echo signals immediately after acquisition, including signal filtering, envelope detection, and preliminary blood flow parameter calculation. This preliminary action prepares the data for subsequent multi-angle synthesis, reducing the overall processing time and enabling real-time or near-real-time blood flow imaging
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves the accuracy and efficiency of blood supply information extraction by enabling detailed imaging of microvessels and obtaining precise blood flow directions, enhancing the overall precision of ultrasonic blood flow imaging.
Implementation Method 1
By utilizing the reflected signals of ultrasound in tissues and extracting tissue blood supply information through algorithms
Implementation Method 2
the ultrasonic blood flow imaging technology... can non-destructively extract blood supply information of the human body and obtain hemodynamic parameters
Data Source
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AI summary
The present application discloses a blood supply information extraction method and apparatus, an electronic device, and a computer-readable storage medium, where the blood supply information extraction method includes: controlling an ultrasonic probe to emit ultrasonic waves to a target body from a plurality of angles, and obtaining ultrasonic echo data of the target body at the plurality of angles, where the imaging areas of the ultrasonic waves emitted from the plurality of angles in the target body have an overlapping area; for the ultrasonic echo data at each angle, respectively performing a blood supply information extraction to obtain blood supply information of the target body at each angle; obtaining blood supply information of the target body in the overlapping area based on the blood supply information at each angle. The ultrasonic probe is controlled to emit ultrasonic waves to the target body from a plurality of different angles, and the imaging areas of the ultrasonic waves from the different angles in the target body have the overlapping area. Based on the ultrasonic echo data from a plurality of different angles, more accurate analysis can be performed on the blood supply information in the overlapping area, thus, the blood supply information with higher accuracy can be obtained.