Ultrasonic Diagnostic Device Dynamic Observation Time Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional ultrasonic diagnostic devices lack the ability to dynamically adjust the observation time length for signal analysis, leading to a trade-off between velocity-detection sensitivity and time resolution, making it difficult to detect and measure Doppler spectrum waveforms, especially for valve regurgitation, which requires high sensitivity and high time resolution respectively.
Innovation Solution
An ultrasonic diagnostic device with a signal-analysis portion that executes signal processing on ultrasonic echoes, a determining portion to assess the presence of a diagnostic target, and a parameter-setting portion to adjust the observation time length based on the detection or measurement phase, allowing for easier detection and accurate measurement of diagnostic indices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the observation time length is set to be relatively long, then velocity-detection sensitivity becomes higher, but time resolution decreases
Solution Approach 1:
The patent applies dynamics by making the observation time length adjustable rather than fixed. The system dynamically changes the observation time length based on the operational phase: using a longer observation time length during the detecting phase to improve velocity-detection sensitivity, and switching to a shorter observation time length during the measuring phase to improve time resolution. This dynamic adaptation resolves the contradiction by allowing optimal settings for each specific operational requirement.
Solution Approach 2:
The patent directly applies parameter changes by modifying the observation time length parameter according to the operational phase. The parameter-setting portion changes the observation time length from a relatively long value during detection to a relatively short value during measurement, thereby adjusting the system's characteristics to match the current operational needs and resolve the trade-off between velocity-detection sensitivity and time resolution.
2Manufacturing precision
If the observation time length is set to be relatively short, then time resolution increases, but velocity-detection sensitivity decreases
Solution Approach 1:
The system dynamically adjusts the observation time length based on the operational phase. During the measuring phase, when high time resolution is needed, the system switches to a shorter observation time length. This dynamic switching allows the system to optimize for time resolution when necessary while maintaining the ability to use longer observation times when detection sensitivity is more critical.
Solution Approach 2:
The parameter-setting portion implements parameter changes by modifying the observation time length from a short value during measurement to a long value during detection. This parameter adjustment enables the system to overcome the limitation of reduced velocity-detection sensitivity that would otherwise result from using a short observation time length, by switching to appropriate parameter values based on operational context.
3Manufacturing precision
If conventional ultrasonic diagnostic devices use a fixed short observation time length, then time resolution is maintained, but velocity-detection sensitivity decreases and detection time increases
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed observation time length to a dynamically adjustable one. The system automatically switches between long and short observation time lengths based on whether it is in the detecting phase or measuring phase, thereby optimizing both detection efficiency and time resolution without requiring manual intervention or sacrificing either performance metric.
Solution Approach 2:
The parameter-setting portion implements parameter changes by automatically adjusting the observation time length parameter based on the operational phase. During detection, the system uses a long observation time length to improve velocity-detection sensitivity and reduce detection time. During measurement, it switches to a short observation time length to maintain time resolution. This automated parameter adjustment resolves the contradiction between detection time and time resolution.
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
Enables easier detection of Doppler spectrum signals and accurate measurement of diagnostic indices, reducing the time required for diagnostics while maintaining high accuracy, even for small signal amounts.
Implementation Method 1
The Doppler spectrum waveform data is created by a fast Fourier transformation (FFT) process. In the FFT process, the Doppler spectrum waveform data is created by extracting waveform data of time periods before and after each instance of sampling
Implementation Method 2
signal data that corresponds to ultrasonic echoes received from a subject
Data Source
AI summary
A signal-analysis portion executes a signal-analysis process to signal data that corresponds to an ultrasonic echo received from a subject. A determining portion determines whether image data regarding the subject, which is created based on the signal data upon which said signal-analysis process has been executed, includes a diagnostic target. A parameter-setting portion, based on the determination result, changes to a different value the value of a specific parameter that has an effect on the resolution of the signal-analysis process, among processing parameters to be employed in the signal-analysis process. A display portion displays image data regarding the subject based on the signal data that has been signal-analysis processed according to the specific parameter.