System for vascular assessment
Systems and methods are described for the compositing together of model-linked vascular data from a plurality of sources, including at least one 2-D angiography image, for display in a frame of reference of the at least one angiography image. In some embodiments, a linking model comprises a data structure configured to link locations of angiographic images to corresponding elements of non-image vascular parameter data. The linking data structure is traversed to obtain a mapping to the frame of reference of one or more of the angiographic images.
1. A method for displaying vascular parameter data, the method comprising:
receiving, in a processor, at least a first and a second 2-D angiographic image each comprising (i) respective 2-D frames of reference, and (ii) vascular image contents viewed from angles at least 30° different from each other;
creating, via the processor, a model including a data structure configured to link a plurality of 2-D locations in each of the first and the second 2-D angiographic images;
determining, via the processor, the vascular parameter data for the linked plurality of 2-D locations using at least one of the first 2-D angiographic image and the second 2-D angiographic image;
forming visual elements of the vascular parameter data at the linked plurality of 2-D locations in the frame of reference of the first 2-D angiographic image; and
displaying via the processor, the visual elements of the vascular parameter data at the plurality of linked 2-D locations in the frame of reference of the first 2-D angiographic image and overlaid on the first 2-D angiographic image,
wherein the display of the vascular parameter data at each of the linked 2-D locations is based on a plurality of accessed parameter data elements, and
wherein the same or a different data structure links at least a third 2-D angiographic image not registrable to consistently align with the first and second 2-D angiographic images by an invertible 2-D geometrical transform, where at least some values of the accessed parameter data elements are derived from processing of a plurality of linked 2-D locations of the third 2-D angiographic image.
2. The method of claim 1 , wherein the visual elements are displayed away from the linked plurality of 2-D locations based on the first 2-D angiographic image.
3. The method of claim 1 , wherein the linking includes storing the plurality of 2-D locations in association with an identifying tag.
4. The method of claim 1 , wherein the linking includes storing the plurality of 2-D locations in association within a list.
5. The method of claim 4 , wherein the list is an ordered list.
6. The method of claim 5 , wherein the linking includes a position specified relative to other locations or elements of the ordered list.
7. The method of claim 1 , wherein the display of the vascular parameter data at the plurality of linked 2-D locations includes rendering a path between some of the linked 2-D locations, the path being rendered with widths based on values determined by processing vascular widths in the linked plurality of 2-D locations of the second 2-D angiographic image.
8. The method of claim 7 , wherein the widths are rendered by at least 1.5 times greater scale than the scale of the vascular diameter in the frame of reference of the first 2-D angiographic image.
9. The method of claim 1 , wherein the display of the vascular parameter data at the linked 2-D locations includes rendering a path between linked 2-D locations, the path having a color assigned based on values of the vascular parameter data.
10. The method of claim 1 , wherein the display of the vascular parameter data at the linked 2-D locations includes rendering a path between linked 2-D locations, the path having at least one of a transparency or a gap assigned based on values of the vascular parameter data.
11. The method of claim 1 , wherein the display of the vascular parameter data at the plurality of linked 2-D locations includes rendering using any combination of displayed path width, display color, display transparency, or display color channel assignment.
12. The method of claim 1 , wherein the plurality of accessed parameter data elements represent a same vascular parameter for a plurality of parameter values.
13. The method of claim 12 , wherein the plurality of parameter values includes values representing a vasculature in different states.
14. The method of claim 1 , wherein the display of the vascular parameter data at each of the linked 2-D locations alternates between being based on different element accessed vascular parameter data.
15. The method of claim 1 , wherein image contents of at least one of the first and the second 2-D angiographic images include views of a vasculature recorded at different view angles.
16. The method of claim 1 , wherein image contents of at least one of the first and the second 2-D angiographic images include views of a vasculature in at least two respective different anatomical states.
17. A system for preparing vascular parameter data for display comprising:
a processor configured to traverse a linkage model stored in digital memory, the linkage model comprising:
at least a first and a second 2-D angiographic image representing respectively at least two separate viewing angles of a cardiac vasculature, and
a data structure linking corresponding 2-D locations of the 2-D angiographic images, the corresponding 2-D locations including representation in common of a region of the cardiac vasculature;
wherein a display image at the plurality of linked 2-D locations in the frame of reference of the first 2-D angiographic image is based on at least vascular parameter data accessed by use of the linking data structure;
wherein the processor is additionally configured to form visual elements of the vascular parameter data at the plurality of linked 2-D locations in the frame of reference of the first 2-D angiographic image;
wherein the vascular parameter data is derived from processing of the correspondingly linked 2-D locations of the second 2-D angiographic image;
wherein the processor is configured to display the visual elements of the vascular parameter data at the plurality of linked 2-D locations in the frame of reference of the first 2-D angiographic image and overlaid on the first 2-D angiographic image;
wherein the processor is configured to display the vascular parameter data at each of the linked 2-D locations based on a plurality of accessed parameter data elements; and
wherein the processor is configured to cause wherein the same or a different data structure to link at least a third 2-D angiographic image not registrable to consistently align with the first and second 2-D angiographic images by an invertible 2-D geometrical transform, where at least some values of the accessed parameter data elements are derived from processing of a plurality of linked 2-D locations of the third 2-D angiographic image.
18. The system of claim 17 , wherein the visual elements are displayed away from the linked 2-D locations based on the first 2-D angiographic image.
19. The system of claim 17 , wherein the linking comprises association in common to an identifying tag.
20. The system of claim 17 , wherein the linking comprises association in common within a list.