Automatic 3D View Angle Adjustment for Cardiac Ablation
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Solution Overview
Problem
Existing cardiac ablation procedures rely heavily on manual adjustment of the 3D view angle by a Clinical Application Specialist (CAS), which introduces delays and disruptions due to the skill dependency and frequent verbal instructions from the physician.
Innovation Solution
A system and method for automatically tracking and adjusting the view angle during cardiac ablation by detecting the catheter tip position, determining the surface normal vector, and aligning the 3D view to a desired angle, either predefined or learned from physician preferences, to provide seamless and continuous visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of 3D view angle by CAS is used, then viewing angle can be adjusted according to physician instructions, but procedure efficiency decreases due to delays and disruptions
Solution Approach 1:
The system automatically adjusts the viewing angle without requiring manual intervention from the CAS. The processor detects catheter position and orientation, calculates the optimal viewing angle based on the relationship between catheter tip and ablation target, and automatically updates the 3D map display, enabling the system to serve itself rather than requiring external manual control
Solution Approach 2:
The manual mechanical adjustment process by the CAS is replaced with an automated computational system. The processor uses detected catheter position and orientation data to computationally determine and adjust the viewing angle, substituting the manual mechanical control system with an automated information processing system
2Ease of operation
If manual adjustment of 3D view angle by CAS is used, then viewing angle can be changed based on verbal instructions, but physician focus is reduced due to frequent interruptions
Solution Approach 1:
The viewing angle adjustment function becomes self-serving, automatically adapting to the procedure progress without requiring physician attention. The system monitors catheter position and autonomously adjusts the display angle, freeing the physician from the need to provide verbal instructions and maintain continuous focus on procedural coordination
3Productivity
If automatic view angle adjustment is implemented, then procedure efficiency increases, but system complexity increases
Solution Approach 1:
The existing processor in the cardiac mapping system is extended to perform multiple functions: it continues to handle catheter position detection and now also performs orientation detection, viewing angle calculation, and automatic display adjustment. This multi-functional approach increases efficiency without adding separate dedicated hardware systems
Solution Approach 2:
The system uses the existing 3D map display and coordinate system as an intermediary to bridge catheter position data and optimal viewing angle determination. By leveraging the established spatial reference framework already present in cardiac mapping systems, the automation integrates smoothly without requiring entirely new measurement or coordination systems
Data Source
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AI summary
A system and methods for automatically adjusting view angle when performing cardiac mapping and ablation are described herein. A three-dimensional (3D) map of a cardiac structure of a patient and a relative location (e.g., position and orientation) of a catheter within the cardiac structure may be displayed on a visual display device. According to an example procedure, the position and orientation of the tip of the catheter within the cardiac structure, and the current ablation target may be detected. A desired viewing angle of the ablation target may be known, determined, provided and/or learned through training sessions with the operator. The viewing angle of the 3D map of the cardiac structure may be automatically adjusted to correspond to the desired viewing angle using the known locations of the tip of the catheter and ablation target. Other details and procedures may be implemented, as described herein.