Lesion Determination Apparatus Using Image Viewing Direction Changes
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Solution Overview
Problem
Conventional lesion determination techniques fail to accurately distinguish between focal and diffuse lesions in medical imaging, leading to reduced accuracy in searching for similar cases due to the difficulty in extracting image feature information from diffuse lesions when the region of interest is not properly set.
Innovation Solution
A lesion determination apparatus that acquires a tomography image set and uses operation instructions to view images in different orders, recording the number of one-directionally viewed images to determine whether the object part is a focal or diffuse lesion based on changes in image position numbers, allowing for appropriate extraction of image feature information for accurate similar case searching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional lesion determination techniques are used, then the system can process medical images, but it cannot accurately distinguish between focal and diffuse lesions
Solution Approach 1:
The system dynamically adapts its analysis approach based on the detected lesion type. For focal lesions, it focuses analysis on the specific lesion region, while for diffuse lesions, it expands analysis to surrounding areas. This dynamic adjustment enables accurate determination of both lesion types without requiring separate specialized systems.
Solution Approach 2:
The system changes key parameters including the region of interest definition, image feature extraction parameters, and search criteria based on whether the lesion is focal or diffuse. This parameter adaptation allows the same system to accurately process and determine different lesion types by adjusting its operational characteristics.
2Measurement precision
If the region of interest is not properly set for diffuse lesions, then processing is simpler, but image feature information cannot be extracted accurately
Solution Approach 1:
The system automatically determines the appropriate region of interest based on the detected lesion type without requiring manual intervention. For diffuse lesions, it self-adjusts to expand the region of interest to capture the full extent of the lesion, thereby automatically extracting accurate image feature information while keeping the operation simple for users.
3Stability of the object's composition
If the same mammographic image is provided every time the same region of interest is specified, then consistency is maintained, but adaptability to different viewing directions is lost
Solution Approach 1:
The system dynamically adjusts search results based on the viewing direction and lesion type. When the viewing direction changes or when dealing with diffuse lesions, it modifies the search parameters and region of interest accordingly. This dynamic behavior maintains consistency in terms of reliable results while adapting to different viewing scenarios.
Data Source
AI summary
A lesion determination apparatus includes: a number-of-images acquiring unit configured to acquire and record, on occurrence of a direction change that is either a first state in which a second operation instruction is received immediately after receipt of a first operation instruction or a second state in which the first operation instruction is received immediately after a receipt of the second operation instruction, a number of one-directionally viewed images that is either a number of tomography images continuously viewed in response to continuous first operation instructions including the first operation instruction in the first state or a number of tomography images continuously viewed in response to continuous second operation instructions including the second operation instruction in the second state; and a locality determining unit configured to determine whether the object part is a focal lesion or a diffuse lesion based on a change in the number of one-directionally viewed images.