Phase-free cardiac roadmapping
AssigneeKoninklijke Philips N.V.
InventorsRaoul Florent, Stephane Valente
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Abstract
According to an exemplary embodiment of the present invention, a cardiac roadmapping technique is provided, that does not rely on the prerequisite of a phase-centric pairing of the angiogram and life images. Instead, both the pairing and accurate registration of the images are combined within a single operation, for example by using a multi-device map. This may provide for robust and precise cardiac roadmapping.
Claims9
An examination apparatus for cardiac roadmapping for examination of an object of interest, the examination apparatus comprising:
- an image processor configured for performing a cardiac roadmapping, the image processor comprising a memory for storing data sets of images of the object of interest and first and second devices, including a vessel-map sequence, and a causal live device-map sequence of the first and second devices, the image processor being configured for performing a registration transform between the vessel-map sequence and the causal live device-map sequence;
- a determination processor configured for performing a global correlation determination of the vessel-map sequence and the causal live device-map sequence;
- wherein the global correlation determination is the optimum of the association between the vessel-map sequence and the causal live device-map sequence, based on their overall similarity and temporal coherency, wherein the optimum of the association is deduced at the same time as the registration transform between the vessel-map sequence and the causal live device-map sequence;
- and
- a display for displaying images from vessel-map sequences or device-map sequences or both.
A method for cardiac roadmapping for examination of a vessel-tree, the method comprising:
- performing a cardiac roadmapping and storing in a memory in an image processor data sets of images of the vessel-tree and first and second devices, including a vessel-map sequence, and a causal live device-map sequence of the first and second devices;
- performing a registration transform between the vessel-map sequence and the causal live device-map sequence;
- performing a global correlation determination by using a determination processor for determining-the optimum of the association between the vessel-map sequence and the causal live device-map sequence, based on their overall similarity and temporal coherency, wherein the optimum of the association is deduced at the same time as the registration transform between the vessel-map sequence and the causal live device-map sequence;
- and
- displaying images from vessel-map sequences or device-map sequences or both.
A computer program product including computer data stored on a non-transitory computer readable medium, the computer program product comprising program code instructions to perform the steps of:
- performing a cardiac roadmapping and storing in a memory in an image processor data sets of images of a vessel-tree and first and second devices, including a vessel-map sequence, and a causal live device-map sequence of the first and second devices;
- performing a registration transform between the vessel-map sequence and the causal live device-map sequence;
- performing a global correlation determination by using a determination processor for determining-the optimum of the association between the vessel-map sequence and the causal live device-map sequence, based on their overall similarity and temporal coherency, wherein the optimum of the association is deduced at the same time as the registration transform between the vessel-map sequence and the causal live device-map sequence;
- and
- displaying images from vessel-map sequences or device-map sequences or both.
Dependencies are inferred from the claim text.