Cine-loop Emulation Using Organ Timing Signals
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Solution Overview
Problem
Existing medical imaging systems that use cine-loops to reduce radiation exposure during procedures often include non-representative images, which can lead to inaccurate anatomical representations, compromising the effectiveness of the emulation of real-time imaging.
Innovation Solution
A control unit is configured to associate each image with an organ timing signal reading, assess whether the images represent a normal organ configuration, and output only those images that are representative, thereby creating a more accurate cine-loop for display during medical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all acquired images are included in the cine-loop, then the completeness of the anatomical representation is improved, but the accuracy of the organ configuration representation deteriorates due to inclusion of non-representative images
Solution Approach 1:
The system extracts and removes non-representative images from the acquired image set based on comparison with reference images. Images that do not match the normal organ configuration patterns are identified and excluded from the final cine-loop, thereby maintaining accuracy while preserving completeness of representative anatomical data.
Solution Approach 2:
The system uses feedback mechanisms by comparing each acquired image against reference images representing normal organ configurations. This comparison provides feedback on whether an image represents a normal configuration, enabling automatic filtering of non-representative images from the cine-loop.
2Measurement precision
If real-time fluoroscopy is used to continuously image the region of interest, then the accuracy of medical device position visualization is improved, but the radiation exposure to patient and physician worsens
Solution Approach 1:
The system creates a cine-loop copy of pre-acquired images that can be replayed during the medical procedure. This copied sequence provides continuous visualization of organ motion and medical device position without requiring continuous real-time fluoroscopy, thereby reducing radiation exposure while maintaining diagnostic accuracy.
Solution Approach 2:
Instead of continuous real-time imaging, the system uses periodic image acquisition to capture a sequence of images that are then replayed as a cine-loop. This periodic sampling approach provides sufficient information for medical device position visualization while significantly reducing the cumulative radiation dose compared to continuous fluoroscopy.
Data Source
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AI summary
A method for emulating prerecorded images may comprise acquiring at least one organ timing signal reading representing an activity state of an organ with at least one organ timing signal detector, acquiring a plurality of images with a medical imaging system, associating each of the plurality of images with an organ timing signal reading, removing any of the organ timing signal readings and associated images that are not representative of a normal organ configuration, and outputting a sequence of the representative images for a display.