3D Medical Image Contouring in Immersive Space
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Solution Overview
Problem
Current methods for radiotherapy planning require radiotherapists to work in a 2D mode, which is time-consuming and laborious, as they need to frequently rotate views and edit contours layer by layer, lacking the convenience and accuracy of direct 3D interaction.
Innovation Solution
A system and method for processing three-dimensional medical images that allows users to generate and modify three-dimensional medical models directly in a 3D space using intuitive operations, enabling contouring and visualization in a manner consistent with human habits, utilizing a processor and storage device to display and process medical imaging data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If 2D tomographic images are used for contouring, then the modeling process can be performed with traditional tools, but the operation becomes time-consuming and laborious requiring frequent rotation and layer-by-layer editing
Solution Approach 1:
The patent transitions from 2D contouring operations to 3D surface-based operations. The system generates a 3D surface model from medical imaging data and allows contouring to be performed directly on this 3D surface, enabling operators to work in three-dimensional space rather than rotating through 2D slices. This dimensional change eliminates the need for frequent view rotations and layer-by-layer editing, significantly improving operational efficiency.
2Adaptability or versatility
If 2D working mode is used with monitor and mouse, then traditional editing can be performed, but the mode lacks intuitiveness and requires frequent viewpoint rotation
Solution Approach 1:
The system implements a 3D working mode where the medical model is displayed and manipulated in three-dimensional space. Operators can interact with the model from multiple angles and perspectives without needing to rotate 2D slices, providing both viewpoint flexibility and operational intuitiveness simultaneously through immersive 3D visualization.
Solution Approach 2:
The patent replaces the traditional mechanical interaction mode (mouse clicks on 2D screens requiring rotation operations) with a more intuitive 3D interaction paradigm. The system allows direct manipulation of the 3D model surface, substituting the cumbersome sequence of rotation and 2D contouring with direct 3D surface operations that align better with human spatial reasoning.
3Manufacturing precision
If layer-by-layer contouring is performed, then 3D model can be reconstructed from 2D contours, but the process is time-consuming and laborious
Solution Approach 1:
The system generates a 3D surface model directly from medical imaging data and performs contouring operations on this 3D surface rather than reconstructing from 2D slices. This approach maintains modeling precision by working with the actual 3D geometry while dramatically improving productivity by eliminating the iterative process of creating and stitching together multiple 2D contours.
Solution Approach 2:
The patent extracts the essential 3D geometric information directly from the medical imaging data to create a surface model, bypassing the intermediate step of 2D contour extraction and reconstruction. This extraction approach preserves the 3D structural accuracy while eliminating the time-consuming layer-by-layer contouring process.
Data Source
AI summary
This present disclosure provides methods and systems processing a three-dimensional image. The method may include: generating a three-dimensional medical image of a target object based on medical imaging data of the target object, and displaying the three-dimensional medical image in a three-dimensional space; obtaining one or more processing instructions of a user; and generating a target medical model by contouring, in the three-dimensional space, based on the one or more processing instructions, the three-dimensional medical image. The three-dimensional medical image may be generated based on medical imaging data of the target object. The target medical model may include three-dimensional contour information.