Ultrasonic Probe Velocity Control for Image Completeness
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Solution Overview
Problem
Ultrasonic diagnostic equipment faces challenges in maintaining a consistent range for acquiring echo signals for projection data due to varying probe movement velocities, leading to truncated images of blood vessels.
Innovation Solution
An ultrasonic image display apparatus that includes a parameter calculation section to determine the moving velocity of the probe, allowing the data generation section to select frames accordingly, ensuring the echo signals are acquired within a required range, regardless of the probe's velocity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the frame count and time for acquiring echo signals are set constant regardless of probe moving velocity, then the operation is simple, but the acquisition range varies with velocity causing image truncation
Solution Approach 1:
The patent applies dynamics by making the frame count dynamically adjustable based on the detected probe moving velocity. Instead of using a fixed frame count, the system automatically increases or decreases the number of frames to acquire according to the probe's speed, ensuring that the acquisition range remains constant regardless of velocity variations. This resolves the contradiction by adapting the acquisition parameters to the actual operating conditions.
Solution Approach 2:
The patent implements feedback by detecting the probe moving velocity and using this information to adjust the frame count for signal acquisition. The system continuously monitors the probe velocity and feeds this information back to the control unit, which then modifies the acquisition parameters accordingly. This closed-loop control ensures that the acquisition range remains consistent even when the operator moves the probe at varying speeds.
2Manufacturing precision
If the frame count is increased to maintain constant acquisition range at low velocities, then the image completeness improves, but the processing complexity increases
Solution Approach 1:
The system dynamically adjusts the frame count based on the detected probe velocity, increasing it only when necessary (at low velocities) and keeping it lower when the probe moves faster. This dynamic adaptation ensures that processing complexity is minimized while still maintaining image completeness when needed, resolving the contradiction between completeness and complexity.
Solution Approach 2:
The patent changes the acquisition parameter (frame count) based on the probe velocity condition. By adjusting this parameter dynamically, the system optimizes the balance between image completeness and processing complexity, using more frames only when the probe moves slowly and fewer frames when it moves quickly.
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 constant range for echo signal acquisition, preventing truncation of blood vessel images and providing a comprehensive three-dimensional view even with varying probe velocities.
Implementation Method 1
an ultrasonic probe 2 which is moved while in contact with a test object and which transmits and receives ultrasonic waves thereto and therefrom so as to obtain echo signals
Data Source
AI summary
An ultrasonic image display apparatus is provided. The ultrasonic image display apparatus includes an ultrasonic probe configured to move while in contact with a test object and configured to transmit and receive ultrasonic waves to and from the test object to obtain echo signals from a three-dimensional region of the test object, a parameter calculation section configured to calculate a parameter related to a moving velocity of the ultrasonic probe, a data generation section configured to generate data based on the echo signals of a plurality of frames, by selecting the frames in accordance with the parameter calculated by the parameter calculation section so that the echo signals of the frames used for generating the data are acquired within a required range, and a display section configured to display an ultrasonic image generated based on the data.