Ultrasound Diagnosis Apparatus Dynamic Frequency Adjustment
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Solution Overview
Problem
Conventional ultrasound diagnosis apparatuses face challenges in achieving optimal sensitivity and spatial resolution due to fixed decimation rates, which affect the quality of ultrasound image data.
Innovation Solution
The ultrasound diagnosis apparatus includes a changing unit that adjusts the center frequency and frequency band based on obtained parameters, optimizing the imaging processing by dynamically changing the sampling frequency and passband in response to changes in spatial frequency during imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If decimation processing is performed to reduce data amounts, then the number of calculations is reduced, but the sensitivity and spatial resolution of ultrasound image data deteriorate
Solution Approach 1:
The patent applies dynamics by making the decimation rate variable rather than fixed. The changing unit dynamically adjusts the decimation rate based on the spatial frequency of the imaging region, allowing the system to optimize between data reduction and image quality adaptively across different imaging conditions
Solution Approach 2:
The patent changes the parameter of decimation rate according to spatial frequency requirements. By adjusting this parameter dynamically based on imaging conditions, the system achieves optimal balance between calculation efficiency and image quality for different regions and depths
2Device complexity
If a fixed decimation rate is used to simplify processing, then device complexity is reduced, but the optimal sensitivity and spatial resolution cannot be achieved in all situations
Solution Approach 1:
The patent introduces parameter changes by adjusting the decimation rate based on spatial frequency requirements. This allows the system to maintain high image quality across varying imaging conditions without requiring fundamentally different processing architectures
Solution Approach 2:
The patent implements feedback through the changing unit that continuously monitors spatial frequency conditions and adjusts the decimation rate accordingly. This closed-loop approach ensures optimal image quality is maintained adaptively throughout the imaging process
Data Source
AI summary
An ultrasound diagnosis apparatus according to an embodiment includes a receiving unit and a changing unit. The receiving unit outputs an ultrasound received signal. The changing unit obtains, in accordance with a change in a spatial frequency of ultrasound image data subject to an imaging processing, a group of parameters related to a frequency characteristic of an imaging received signal that is output by the receiving unit as the ultrasound received signal to be used in the imaging processing and changes a center frequency and a frequency band to be used in the imaging processing performed on the imaging received signal, on a basis of the obtained group of parameters.