3D Anatomical Boundary Interface for Deformed Image Navigation
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Solution Overview
Problem
Existing minimally invasive medical procedures lack an intuitive graphical user interface for planning and performing image-guided procedures, particularly in managing the insertion, steering, and navigation of flexible elongate devices within patient anatomy.
Innovation Solution
A medical system with a display system and user input device that allows for the generation of curves in three-dimensional anatomical regions to define anatomical boundaries, using user inputs to determine and display these boundaries on image data, aiding in the planning and execution of medical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a graphical user interface is provided for planning medical procedures, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system creates a virtual copy of the three-dimensional anatomical region from medical imaging data, allowing operators to plan procedures on this digital replica without affecting the actual patient anatomy. This virtual model can be manipulated, segmented, and analyzed repeatedly without complexity concerns, while the actual medical device remains simple.
Solution Approach 2:
The graphical user interface acts as an intermediary layer between the operator and the complex medical imaging and navigation systems. It translates complex three-dimensional spatial data and anatomical structures into intuitive visual representations, curves, and boundaries that operators can easily manipulate, thereby improving ease of operation without exposing the underlying system complexity.
2Measurement precision
If anatomical boundaries are defined using multiple curves in three-dimensional space, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The anatomical boundary is segmented into multiple discrete curves defined in different slices or planes of the three-dimensional anatomical region. Each curve can be independently defined and adjusted, allowing precise delineation of complex anatomical structures. The system then integrates these segmented curves to form the complete boundary, achieving high measurement precision through systematic segmentation.
Solution Approach 2:
The system defines anatomical boundaries by creating curves in multiple dimensional slices (different planes) of the three-dimensional anatomical region. By working in multiple dimensions and then integrating these dimensional slices, the system achieves precise three-dimensional boundary definition while maintaining manageable complexity through systematic dimensional decomposition.
3Object-affected harmful factors
If minimally invasive techniques are used to reduce tissue damage, then object-affected harmful factors are reduced, but ease of operation worsens due to increased difficulty in instrument control
Solution Approach 1:
The system performs preliminary planning of the entire procedure, including definition of anatomical boundaries, selection of entry points, and determination of instrument trajectories, before the actual minimally invasive procedure begins. This advance planning allows operators to visualize and prepare for the complex maneuvers required, making the actual execution easier and more accurate while minimizing tissue damage.
Solution Approach 2:
The graphical user interface provides real-time feedback by displaying the defined anatomical boundaries, planned trajectories, and instrument positions overlaid on the three-dimensional anatomical region. This visual feedback allows operators to continuously monitor their actions against the planned procedure and anatomical constraints, improving ease of operation through informed decision-making while maintaining the benefits of minimally invasive techniques.
Data Source
AI summary
A medical system includes a display system and a control system communicatively coupled to the display system. The control system is configured to display, via the display system, image data corresponding to a three-dimensional (3D) anatomical region. The control system is also configured to display, via the display system, an anatomical boundary. The anatomical boundary indicates a surface of an anatomical structure in the 3D anatomical region. The control system is also configured to determine that the 3D anatomical region is deformed and deform the displayed anatomical boundary to correspond to the deformed 3D anatomical region.