Method and apparatus for real time quantitative three-dimensional image reconstruction of a moving organ and intra-body navigation
First Claim
Patent Images
1. Method for displaying an image sequence of a cyclically moving inspected organ that moves according to an organ motion cycle, comprising the steps of:
- detecting an organ timing signal of said inspected organ, said organ timing signal including a plurality of occurrences within said organ motion cycle;
acquiring during said procedure of detecting a plurality of two-dimensional images of said inspected organ from different locations and orientations using an image detector;
detecting for each of said two-dimensional images acquired a respective location and orientation of said image detector;
associating each of said two-dimensional images with its corresponding respective image detector location and orientation and with a reading of said organ timing signal, which was detected at the same time as the acquisition of a said two-dimensional image, each said reading corresponding to a certain point in said organ motion cycle;
sorting said two-dimensional images into groups according to said cycle points in said organ motion cycle which correspond to the associated organ timing signal reading corresponding to a certain cycle point in said organ motion cycle;
reconstructing for each said group of two-dimensional images, a three-dimensional image based on the location and orientation associated with each of said two-dimensional images in a group, each said reconstructed three dimensional images being associated with respective cycle points of said organ motion cycle of said group;
detecting a real-time organ timing signal of said inspected organ at a time later than the detection of said organ timing signal;
identifying real-time cycle points within said real-time organ timing signal;
selecting for each said identified real-time cycle point one of said reconstructed three-dimensional images associated with a cycle point which corresponds to said identified real-time cycle point; and
displaying in real-time a sequence of said selected three-dimensional images.
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Abstract
Medical imaging and navigation system including a processor, a medical positioning system (MPS), a two-dimensional imaging system and an inspected organ monitor interface, the MPS including an imaging MPS sensor, the two-dimensional imaging system including an image detector, the processor being coupled to a display unit and to a database, the MPS being coupled to the processor, the imaging MPS sensor being firmly attached to the image detector, the two-dimensional imaging system being coupled to the processor, the image detector being firmly attached to an imaging catheter.
445 Citations
12 Claims
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1. Method for displaying an image sequence of a cyclically moving inspected organ that moves according to an organ motion cycle, comprising the steps of:
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detecting an organ timing signal of said inspected organ, said organ timing signal including a plurality of occurrences within said organ motion cycle; acquiring during said procedure of detecting a plurality of two-dimensional images of said inspected organ from different locations and orientations using an image detector; detecting for each of said two-dimensional images acquired a respective location and orientation of said image detector; associating each of said two-dimensional images with its corresponding respective image detector location and orientation and with a reading of said organ timing signal, which was detected at the same time as the acquisition of a said two-dimensional image, each said reading corresponding to a certain point in said organ motion cycle; sorting said two-dimensional images into groups according to said cycle points in said organ motion cycle which correspond to the associated organ timing signal reading corresponding to a certain cycle point in said organ motion cycle; reconstructing for each said group of two-dimensional images, a three-dimensional image based on the location and orientation associated with each of said two-dimensional images in a group, each said reconstructed three dimensional images being associated with respective cycle points of said organ motion cycle of said group; detecting a real-time organ timing signal of said inspected organ at a time later than the detection of said organ timing signal; identifying real-time cycle points within said real-time organ timing signal; selecting for each said identified real-time cycle point one of said reconstructed three-dimensional images associated with a cycle point which corresponds to said identified real-time cycle point; and displaying in real-time a sequence of said selected three-dimensional images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification