Mixed Reality Cranial Trajectory Planning for Patient-Specific Entry Points
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Solution Overview
Problem
Existing methods for calculating puncture positions in cranial surgical procedures rely solely on three-dimensional models and do not account for actual patient anatomical and clinical factors, leading to potential suboptimal puncture positions.
Innovation Solution
A method and system utilizing a head-mounted mixed reality display to overlay patient-specific 3D models, incorporating an AI algorithm for segmentation and trajectory calculation, allowing surgeons to manually select an entry point and calculate a personalized surgical trajectory considering tissue conditions and obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a three-dimensional model of the patient's organ is used to calculate the puncture position, then the surgical procedure can be planned in advance, but the calculated puncture position may not be optimal for the actual patient because it does not account for real patient anatomical and clinical factors
Solution Approach 1:
The system incorporates feedback by allowing the surgeon to manually adjust the entry point on the holographic display based on real patient conditions, and the surgical trajectory is recalculated automatically to account for these adjustments and actual tissue conditions, ensuring the final puncture position is optimized for the specific patient
Solution Approach 2:
The system transitions from a static preoperative plan to a dynamic adjustment process where the surgical trajectory can be modified in real-time based on actual patient anatomy and clinical factors, allowing the puncture position to adapt to individual patient needs
2Productivity
If the puncture position is calculated exclusively on the three-dimensional model, then the preparation time can be reduced, but the success rate of the surgical procedure may be compromised due to lack of real patient condition consideration
Solution Approach 1:
The system performs preliminary actions by automatically calculating an initial surgical trajectory based on the three-dimensional model before the actual surgery, providing a ready-to-review plan that can be quickly adjusted if needed, thus maintaining efficiency while enabling optimization
3Measurement precision
If manual selection of entry point is allowed during surgery, then the surgical trajectory can be optimized for real patient conditions, but the surgical procedure becomes more complex and time-consuming
Solution Approach 1:
The system provides self-service by automatically recalculating the surgical trajectory in response to manual entry point selection by the surgeon, eliminating the need for complex manual calculation or planning tools while enabling real-time optimization based on actual patient conditions
Data Source
AI summary
System for the improvement of a virtual cranial surgical procedure, and relative method comprising the steps of: identifying a target of said surgical procedure; generating by means of an artificial intelligence algorithm a three-dimensional holographic model of the portion of the patient's skull by processing preoperative clinical images; identifying the target of the surgical procedure in the three-dimensional holographic model; acquiring in real time a depth image of the real environment by means of a holographic device; identifying by means of the holographic device a pointer movable by the user in the holographic model; identifying an entry point of the surgical procedure selected by the user by means of said pointer on the three-dimensional holographic model displayed on the display; calculating a surgical trajectory connecting the entry point to the target in the three-dimensional holographic model; displaying by means of the display of the visor the surgical trajectory together with the three-dimensional holographic model in overlay to the real environment.