Stereotactic Planning Tool Using Density Maps for Trajectory Optimization
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Solution Overview
Problem
Planning stereotactic surgical procedures is complex and time-consuming, requiring a thorough understanding of neuroanatomy and individualized plans for each patient, with inaccuracies potentially leading to severe complications or death.
Innovation Solution
A surgery planning tool that uses existing surgical plans from previous stereotactic procedures to create a new plan by extracting and processing imaging data, registering it to a standard anatomical template, and generating density maps to determine optimal entry and target points for surgical trajectories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional stereotactic planning methods are used, then surgical accuracy can be maintained, but the planning process becomes extremely complex and time-consuming
Solution Approach 1:
The system pre-calculates and stores optimal trajectories and entry points in a lookup table based on the density map before actual surgical planning. During surgery, planners can quickly retrieve pre-computed trajectories by selecting entry points from the density map, avoiding complex real-time calculations and significantly reducing planning time while maintaining accuracy
Solution Approach 2:
The system creates a standardized anatomical template (density map) that represents average brain anatomy from multiple patients. This template serves as a reusable copy that can be applied to different patients, eliminating the need to perform complex individualized planning for each case while preserving surgical precision through standardized trajectories
2Adaptability or versatility
If conventional stereotactic planning methods are used, then individualized surgical plans can be created, but the time required for planning increases significantly
Solution Approach 1:
The system pre-computes optimal trajectories and stores them in a lookup table organized by entry point locations on the density map. During actual surgical planning, clinicians can quickly select from pre-calculated trajectories by choosing entry points, reducing planning time from hours to minutes while still providing individualized plans based on patient-specific entry point selection
Solution Approach 2:
The density map serves as a universal template that can be applied to multiple different patients and surgical scenarios. A single density map contains pre-computed trajectories that can be reused across different cases, eliminating redundant calculations and significantly reducing planning time while maintaining adaptability to individual patient needs through entry point selection
3Productivity
If multiple stereotactic trajectories and targets are added to improve treatment coverage, then therapeutic effectiveness increases, but planning complexity and risk of inaccuracies increase
Solution Approach 1:
The system pre-calculates and validates multiple trajectories and their intersections before surgery, storing them in a lookup table. By pre-computing these complex multi-trajectory plans and checking for inconsistencies beforehand, the system can handle multiple targets and trajectories without increasing real-time planning complexity or risking accuracy, as all calculations are verified in advance
Solution Approach 2:
The density map serves as an intermediary representation that simplifies the relationship between multiple trajectories and targets. By projecting all trajectories onto the standardized density map template, the system creates a common reference framework that makes it easier to plan and verify multiple trajectories without increasing complexity or risk of errors
Data Source
AI summary
Systems, methods, and devices for planning stereotactic surgical procedures are disclosed. In one aspect, a method includes: accessing surgical plans for previous stereotactic procedures performed on a group of patients, the surgical plans including imaging data representing an anatomical feature of each patient in the group; applying one or more transforms to register the imaging data for each patient to a template of the anatomical feature for the group of patients; generating one or more density maps for a trajectory targeting at least one region of interest (ROI) in the anatomical feature, based on the registered imaging data; and generating a surgical plan to perform a current stereotactic procedure on a subject patient, based on the one or more density maps, the surgical plan including the trajectory targeting the at least one ROI in the anatomical feature of the subject patient. Other aspects and features are also claimed and described.