Lesion Position Mapping Across Deformed Breast Imaging Positions
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Solution Overview
Problem
Current techniques fail to accurately display the position of lesions on medical images taken in different positions due to breast deformation, leading to deviations in the displayed position of lesions during ultrasound examinations, and do not provide intuitive contrast for medical documents.
Innovation Solution
An image processing apparatus that acquires images of a target object in different shapes, converts the position of a region of interest from one shape to another, and displays it on a body mark, accounting for physical deformation between imaging positions, enabling precise lesion localization and intuitive documentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical conversion is performed to account for breast deformation between prone and supine positions, then the accuracy of lesion position display is improved, but the complexity of the image processing system increases
Solution Approach 1:
The system performs physical conversion calculations in advance to determine the correspondence between prone and supine position images. Conversion parameters are pre-calculated based on breast deformation characteristics, allowing accurate lesion position display without real-time complex computations during examination.
Solution Approach 2:
The invention introduces a conversion parameter table as an intermediary that stores pre-calculated transformation data between different imaging positions. This table acts as a mediator that simplifies the complex physical conversion process, enabling accurate position mapping without requiring complex real-time calculations.
2Loss of information
If multiple regions of interest from different imaging positions are displayed separately, then the source of each lesion can be traced, but the overall view and comparison become difficult
Solution Approach 1:
The system merges multiple body marks from different imaging positions (prone and supine) into a single integrated display. Corresponding lesions from different positions are overlaid on the same coordinate system, allowing physicians to view all regions of interest together while maintaining the ability to distinguish their sources through visual cues.
3Device complexity
If conventional coordinate conversion is used without considering physical deformation, then the processing is simple, but the displayed lesion position deviates from the actual position
Solution Approach 1:
The system changes the conversion parameters from simple coordinate transformation to physics-based deformation compensation parameters. By incorporating physical conversion parameters that account for breast deformation characteristics, the system achieves accurate position mapping while maintaining manageable processing complexity through pre-calculated parameter tables.
Data Source
AI summary
An image processing apparatus displays the position of a region of interest in a target object with a first shape on a body mark that represents the target object. Here, the image processing apparatus includes an image acquisition unit configured to acquire an image of a target object with a second shape that is different from the first shape, a converter configured to convert the position of the region of interest in the target object with the second shape into a corresponding position in the target object with the first shape, and a composition unit configured to display the converted position of the region of interest on the body mark.