Method and system for propagation of myocardial infarction from delayed enhanced cardiac imaging to cine magnetic resonance imaging using hybrid image registration
First Claim
1. A method for propagating at least a portion of a static image over a cardiac cycle, comprising:
- selecting a reference frame of a cine image sequence comprising a plurality of frames;
calculating a plurality of deformation fields within the cine image sequence to register the frames of the cine image sequence to the reference frame;
registering the static image to the reference frame of the cine image sequence; and
propagating at least a portion of the static image to a plurality of cardiac phases corresponding to the plurality of frames in the cine image sequence based on a deformation field resulting from registering the static image to the reference frame and the plurality of deformation fields calculated within the cine image sequence.
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Accused Products
Abstract
A method and system for propagation of myocardial infarction from delayed enhanced magnetic resonance imaging (DE-MRI) to cine MRI is disclosed. A reference frame is selected in a cine MRI sequence. Deformation fields are calculated within the cine MRI sequence to register the frames of the cine MRI sequence to the reference frame. A DE-MRI image having an infarction region is registered to the reference frame of the cine MRI sequence. The DE-MRI image may be registered to the infarction region using a hybrid registration algorithm that unifies both intensity and feature points into a single cost function. Infarction information in the DE-MRI image is then propagated cardiac phases of the frames in the cine MRI sequence based on the registration of the DE-MRI image to the reference frame and the plurality of deformation fields calculated within the cine MRI sequence.
218 Citations
32 Claims
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1. A method for propagating at least a portion of a static image over a cardiac cycle, comprising:
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selecting a reference frame of a cine image sequence comprising a plurality of frames; calculating a plurality of deformation fields within the cine image sequence to register the frames of the cine image sequence to the reference frame; registering the static image to the reference frame of the cine image sequence; and propagating at least a portion of the static image to a plurality of cardiac phases corresponding to the plurality of frames in the cine image sequence based on a deformation field resulting from registering the static image to the reference frame and the plurality of deformation fields calculated within the cine image sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for propagating at least a portion of static image over a cardiac cycle, comprising:
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means for selecting a reference frame of a cine image sequence comprising a plurality of frames; means for calculating a plurality of deformation fields within the cine image sequence to register the frames of the cine image sequence to the reference frame; means for registering a static image to the reference frame of the cine image sequence; and means for propagating at least a portion of the static image to a plurality of cardiac phases corresponding to the plurality of frames in the cine image sequence based on a deformation field resulting from registering the static image to the reference frame and the plurality of deformation fields calculated within the cine image sequence. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A non-transitory computer readable medium encoded with computer executable instructions for propagating at least a portion of a static image over a cardiac cycle, the computer executable instructions defining steps comprising:
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selecting a reference frame of a cine image sequence comprising a plurality of frames; calculating a plurality of deformation fields within the cine image sequence to register the frames of the cine image sequence to the reference frame; registering a static image to the reference frame of the cine image sequence; and propagating at least a portion of the static image to a plurality of cardiac phases corresponding to the plurality of frames in the cine image sequence based on a deformation field resulting from registering the static image to the reference frame and the plurality of deformation fields calculated within the cine image sequence. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification