Ultrasound Motion Compensation via Offset Buffer Acquisition
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Solution Overview
Problem
Ultrasound imaging systems face challenges in maintaining image stability and completeness due to gross motion of the region of interest (ROI) outside the visible sector, leading to data loss and incomplete analysis.
Innovation Solution
A method for motion compensation that involves acquiring additional imaging data from a buffer region offset from the visible sector, using this data to supplement and stabilize the image display, even when the ROI moves outside the sector, by adjusting the acquisition beam angle and applying motion tracking algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the ultrasound probe transmits sound waves only within the visible sector, then the image display remains simple and focused, but data is lost when the region of interest moves outside the visible sector due to gross motion
Solution Approach 1:
The system performs preliminary action by acquiring imaging data in a buffer region offset from the visible sector before the region of interest actually moves outside the visible sector. This anticipatory data collection ensures that when gross motion occurs, the necessary imaging data is already available for motion compensation, preventing data loss without requiring expansion of the visible sector.
Solution Approach 2:
The system adds another dimension to the imaging approach by collecting data not only from the visible sector but also from an offset buffer region. This multi-dimensional data collection strategy allows the system to compensate for motion in the original visible sector using data from the additional offset region, effectively expanding the functional coverage without increasing the displayed visible area.
2Reliability
If additional imaging data is acquired from a buffer region offset from the visible sector, then motion compensation is improved and data completeness is enhanced, but the system complexity and processing requirements increase
Solution Approach 1:
The system applies local quality by acquiring additional imaging data specifically from a buffer region offset from the visible sector, rather than uniformly increasing data acquisition across all regions. This targeted approach provides motion compensation data exactly where needed (in the offset region where motion is likely to occur) without unnecessarily complicating the entire data acquisition system.
3Loss of information
If the beam angle is adjusted to collect additional data from areas outside the visible sector, then the completeness of imaging data is improved, but the acquisition time and processing load increase
Solution Approach 1:
The system performs preliminary action by adjusting the beam angle to collect additional data from the buffer region offset from the visible sector before motion occurs. This anticipatory data collection ensures that when the region of interest moves outside the visible sector, the necessary imaging data is already available, eliminating the need for time-consuming post-motion data acquisition and reducing overall acquisition time.
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
This approach ensures a stable and complete display of the ROI, preventing data loss and allowing for accurate analysis by maintaining the ROI's position within the imaging sector, even during gross motion, thereby enhancing the reliability of ultrasound imaging.
Implementation Method 1
The sound waves are generated by an ultrasound probe or transducer
Implementation Method 2
Reflection of the sound waves by boundaries between organs, tissues, bones, etc., are detected by the probe
Data Source
AI summary
Various methods and systems are provided for display of live images. In one example, a method for motion compensation in the live images includes acquiring a first set of imaging data from a visible sector of an imaging system, the visible sector including a region of interest displayed to a user, and acquiring a second set of imaging data at an area offset from the visible sector, during the acquiring of the first set of imaging data. The second set of imaging data is used to compensate for gross motion of the region of interest resulting in displacement of at least a portion of the region of interest outside of the visible sector.