Endoluminal Data Co-Registration with Extraluminal Roadmap Images
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Solution Overview
Problem
Current medical procedures face challenges in effectively integrating extraluminal imaging with endoluminal data for precise navigation and data registration during vascular catheterizations and other luminal interventions, leading to suboptimal visualization and accuracy.
Innovation Solution
The development of an apparatus and method that combines extraluminal imaging with endoluminal data acquisition, using a processor to designate roadmap images, identify features, and co-register endoluminal data points with extraluminal images, allowing for accurate mapping and display of data within a roadmap image for real-time procedural guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If extraluminal imaging and endoluminal data are evaluated separately, then the complexity of the system is reduced, but the measurement precision and navigation accuracy deteriorate
Solution Approach 1:
The patent merges extraluminal imaging data with endoluminal data by co-registering them in a common coordinate system. The system combines fluoroscopic images with endoluminal measurements to create an integrated visualization that displays both extraluminal anatomical structures and endoluminal device positions simultaneously, thereby improving measurement precision without requiring separate evaluation processes
Solution Approach 2:
The patent introduces a coordinate transformation module as an intermediary that bridges the extraluminal and endoluminal coordinate systems. This intermediary component automatically transforms and aligns the two different coordinate systems, enabling accurate registration of endoluminal data with extraluminal images without requiring complex manual integration processes
2Productivity
If endoluminal device location is tracked in real-time, then the productivity and procedural efficiency are improved, but the device complexity and computational requirements worsen
Solution Approach 1:
The patent implements real-time feedback by continuously tracking the endoluminal device position during advancement through the lumen. The system processes extraluminal images at each position to provide immediate feedback on device location, enabling real-time navigation adjustments and improving procedural efficiency through continuous position verification
Solution Approach 2:
The patent performs preliminary actions by pre-processing extraluminal images to identify and store anatomical landmarks and vascular structures before the endoluminal device reaches each position. This preliminary image analysis and feature extraction reduces the computational burden during real-time device tracking, as the system only needs to match pre-identified features rather than processing entire images at each position
3Measurement precision
If multiple extraluminal images are processed to track device position, then the measurement precision is improved, but the loss of time and processing speed worsen
Solution Approach 1:
The patent extracts only the essential information from extraluminal images, such as anatomical landmarks, vascular structures, and device markers, rather than processing the complete image data. By extracting and storing only the critical features needed for position determination, the system reduces the amount of data that needs to be processed at each position, thereby decreasing processing time while maintaining measurement precision
Solution Approach 2:
The patent segments the image processing into distinct phases: pre-processing phase where extraluminal images are analyzed and features are extracted, and real-time phase where only the extracted features are matched with endoluminal device position. This segmentation separates the computationally intensive tasks, allowing for more efficient processing and reducing the time loss associated with processing multiple images at each position
Data Source
AI summary
Apparatus and methods are described including, while an endoluminal data-acquisition device is being moved through a subject's lumen, acquiring a plurality of endoluminal data points of the lumen using the endoluminal data-acquisition device. It is determined that respective endoluminal data points correspond to respective locations along the lumen. A display is driven to display at least some of the plurality of endoluminal data points in a stack. While a second endoluminal device is inside the lumen, a current location of at least a portion of the second endoluminal device with respect to the lumen is determined. In response thereto, an image of the second endoluminal device is displayed within the stack, at a location within the stack corresponding to the current location of the second endoluminal device. Other applications are also described.