FPD Navigation Guidance for Accurate Blood Vessel Imaging
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Solution Overview
Problem
Existing FPD systems struggle to guide an appropriate imaging position for acquiring images of target blood vessels, leading to incorrect positional relations among blood vessels, lesions, and medical devices, particularly in procedures like chronic total occlusion, affecting the ability to correctly advance medical devices.
Innovation Solution
The FPD navigation device acquires multiple images from different positions, derives position information, and outputs a recommendation range for optimal FPD positioning, enabling guidance through a guide screen display and automated control of the FPD's arm to ensure accurate imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple images are acquired from different positions to determine optimal imaging position, then imaging position accuracy is improved, but system complexity and processing time increase
Solution Approach 1:
The system performs preliminary actions by acquiring multiple images from different positions and calculating the optimal imaging position in advance, before the actual imaging procedure. This allows the technician to plan the imaging approach beforehand, improving position accuracy while managing complexity through pre-computation rather than real-time complexity
Solution Approach 2:
The system introduces an intermediary computational process that analyzes multiple images and derives position information to determine the optimal imaging position. This intermediary step acts as a mediator between image acquisition and final imaging, resolving the contradiction by adding intelligent processing that improves accuracy without requiring complex hardware modifications
2Ease of operation
If FPD is positioned at arbitrary location, then ease of operation is improved, but image quality and positional relation accuracy deteriorate
Solution Approach 1:
The system provides feedback by calculating and displaying the optimal imaging position based on multiple acquired images. The technician can adjust the FPD position according to this feedback information, ensuring both ease of operation (through guidance) and high positional accuracy (through optimized position selection). The feedback loop resolves the contradiction by guiding the operator to the correct position without requiring manual trial-and-error
Solution Approach 2:
The system performs preliminary calculation of the optimal imaging position before the technician positions the FPD. This preliminary action provides a target position that guides the technician, making the operation easier while ensuring the final position achieves high accuracy for correct positional relations among blood vessels, lesions, and medical devices
Data Source
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AI summary
A FPD navigation device includes an image acquiring portion that acquires, from a FPD (flat panel detector), a first image including an image of a target blood vessel taken at a first position, and a second image including an image of the target blood vessel taken at a second position different from the first position; a position information acquiring portion that acquires position information on the target blood vessel from the first image, the second image, position information on the first position, and position information on the second position; and a recommendation range output portion that outputs, from the position information on the target blood vessel, a FPD imaging position recommendation range representing a range of an imaging position of the FPD recommended for acquiring an image of the target blood vessel.