Composite Anatomical Modeling via Segmented Surface Merging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional line-of-sight surface modeling methods fail to accurately represent complex anatomies, particularly the interior shape of the heart, as they cannot model areas beyond the line of sight, leading to inaccurate models that are inadequate for electrophysiology measurements and treatments.
Innovation Solution
The method involves creating multiple three-dimensional surface models of different anatomical sections using distinct mean center points, combining them to form a composite model, and trimming intersecting polygons to exclude interior volumes, thereby overcoming the limitations of line-of-sight modeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional line-of-sight surface modeling methods are used, then the modeling process is simple, but the model accuracy is insufficient for complex anatomies
Solution Approach 1:
The complex anatomy is divided into multiple sections, each modeled separately using line-of-sight methodology from its own mean center point. This segmentation allows accurate modeling of each section while overcoming the line-of-sight limitation, and the sections are later combined to form the complete anatomy model.
2Manufacturing precision
If multiple surface models are combined to cover areas beyond line of sight, then the model accuracy improves, but the device complexity increases
Solution Approach 1:
Multiple surface models created from different mean center points are merged into a single composite anatomy model. The merging process integrates the strengths of each individual model to provide complete coverage of the complex anatomy, including areas that would be invisible from any single viewpoint.
3Area of stationary object
If multiple mean center points are used to model different sections, then complete anatomy coverage is achieved, but the processing time increases
Solution Approach 1:
The anatomy is segmented into multiple sections that can be modeled independently and in parallel. Each section is assigned its own mean center point and modeled separately, allowing for efficient processing while ensuring complete coverage of the entire anatomy.
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
Disclosed herein are methods and systems for creating a complex model of the human anatomy (11). The anatomy may be modeled using multiple geometries. Generally, a plurality of line-of-sight models may be combined into a composite model. Multiple clouds (50) of points (40) may be used to create surface models which may then be merged into a common volume. The resulting composite model may include portions that are not within a line of sight of a mean center point of the composite model. The surface models may be modeled using polygons, including for example, triangles. Disclosed herein are also ways in which electrophysiology data and/or other information may be mapped from a measurement point to a point on the composite model.