Real-Time Surgical Navigation Using Dynamic Electronic Organ Map Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current image-guided surgery systems face challenges in registering and navigating soft-tissue organs due to their non-rigid motion during surgery, which complicates real-time tracking and prediction of surgical paths and functional measurements, and require users to wear special glasses to merge electronic organ maps with actual anatomy.
Innovation Solution
A system and method for real-time surgical procedure assistance using an electronic organ map, which involves tracking 3D poses of sensors on the organ, calculating deformation transformations, and projecting the deformed map onto the organ to provide predictive functional and volumetric measurements and anatomy-based alerts without the need for special glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fiducial-mark-based registration is used for soft-tissue organs, then registration can be performed, but the non-rigid motion of the organ during surgery causes inaccurate tracking and deformation prediction
Solution Approach 1:
The system dynamically updates the organ map during surgery by continuously tracking the positions of fiducial marks and recalculating deformation transformations. This allows the system to adapt to real-time organ motion and maintain accurate registration despite non-rigid deformation, directly resolving the contradiction between measurement precision and shape stability.
2Loss of information
If augmented reality technologies are used to merge electronic organ map with actual organ, then surgeons can see both actual organ and pre-planned surgical path, but users must wear special electronic glasses which reduces ease of operation
Solution Approach 1:
The system uses the surgical console display as an intermediary to present the merged organ map and surgical path information. Instead of requiring special glasses, the system projects the virtual organ map onto the actual organ view and displays both on the conventional surgical console screen, eliminating the need for additional wearable equipment while maintaining information visibility.
3Productivity
If pre-planned surgical path is followed exactly, then surgical procedure can be completed, but organ deformation during surgery causes deviation from planned path reducing manufacturing precision
Solution Approach 1:
The system continuously monitors the actual positions of fiducial marks on the organ during surgery and compares them with the pre-planned surgical path. Based on real-time deformation data, the system dynamically adjusts the surgical path recommendations and provides feedback to the surgeon, allowing the procedure to adapt to organ motion while maintaining precision.
Data Source
AI summary
Methods, systems, and programs for real-time surgical procedure assistance are provided. A first set of 3D poses of the 3D points on the organ may be received. An electronic organ map built for the organ via pre-surgical medical information may be retrieved. A tissue parameter of the organ may be obtained based on the first set of 3D poses and their corresponding 3D poses from the electronic organ map. A deformation transformation of the electronic organ map may be calculated based on the obtained tissue parameter and the first set of 3D poses during the surgical procedure. The deformed electronic organ map may be projected onto the organ with respect to the first set of 3D poses during the surgical procedure.