Intravascular data visualization and interface systems and methods
In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and detected stent struts. Levels of stent malapposition can be defined using a user interface such as a slider, toggle, button, field, or other interface to specify how indicia are displayed relative to detected stent struts. In addition, the disclosure relates to methods to automatically provide a two or three-dimensional visualization suitable for assessing side branch and/or guide wire location during stenting. The method can use one or more a computed side branch location, a branch takeoff angle, one or more stent strut locations, and one or more lumen contours.
1. A method of visualizing intravascular information obtained using an intravascular data collection probe, the method comprising the steps of:
receiving intravascular data for a blood vessel, the data comprising a plurality of image frames;
storing the intravascular data in a memory device of an intravascular data collection system;
detecting one or more side branches on a per image frame basis;
detecting a lumen boundary on a per image frame basis;
estimating side branch orientation by fitting a model constrained by a side branch arc;
determining a first viewing angle for at least one of the side branch or lumen;
selecting orientation of fitted model; and
displaying a three-dimensional visualization for at least one of the side branch or lumen.
2. The method of claim 1 further comprising displaying a three-dimensional fly through relative to at least one of the side branch or lumen.
3. The method of claim 2 wherein the three-dimensional fly through is user controllable in one or more directions using an input device.
4. The method of claim 1 wherein the intravascular data is optical coherence tomography data.
5. The method of claim 1 , wherein the model is an orientable shape.
6. The method of claim 1 further comprising detecting a plurality of stent struts.
7. The method of claim 6 further comprising determining a second viewing angle for the plurality of stents struts.
8. The method of claim 1 further comprising detecting one or more guide wires.
9. The method of claim 8 further comprising determining a third viewing angle for the one or more guidewires.
10. The method of claim 1 wherein the three-dimensional visualization is oriented at the first viewing angle.
11. The method of claim 1 further comprising determining a side branch arc of lumen; estimating side branch orientation by fitting a cylinder constrained by side branch arc; and selecting orientation of fitted cylinder.
12. The method of claim 1 further comprising determining a mid-frame of an image frame, determining mid-arc position on the mid frame; and setting initial camera position for three-dimensional view to orient towards intravascular imaging probe for the mid-frame.
13. A method of visualizing intravascular information obtained using an intravascular data collection probe, the method comprising the steps of:
receiving intravascular data for a blood vessel, the data comprising a plurality of image frames;
storing the intravascular data in a memory device of an intravascular data collection system;
processing the intravascular data, using a side branch detection software module, to detect one or more side branches on a per image frame basis;
processing the intravascular data, using a lumen detection software module, to detect the lumen boundary on a per image frame basis;
determining a first viewing angle for at least one of the side branch or lumen;
estimating side branch orientation by fitting model constrained by a side branch arc; and
selecting orientation of fitted model.
14. The method of claim 13 further comprising displaying a three-dimensional visualization for at least one of the side branch or lumen.
15. The method of claim 13 further comprising determining a mid-frame of the plurality of image frames, determining mid-arc position on the mid frame; and setting initial camera position for three-dimensional view to orient towards intravascular imaging probe for the mid-frame.
16. A method of visualizing intravascular information obtained using an intravascular data collection probe, the method comprising the steps of:
receiving intravascular data for a blood vessel, the data comprising a plurality of image frames;
storing the intravascular data in a memory device of an intravascular data collection system;
processing the intravascular data, using a side branch detection software module, to detect one or more side branches on a per image frame basis;
processing the intravascular data, using a lumen detection software module, to detect the lumen boundary on a per image frame basis;
determining a first viewing angle for at least one of the side branch or lumen;
determining a mid-frame of the plurality of image frames;
determining mid-arc position on the mid frame; and
setting initial camera position for three-dimensional view to orient towards intravascular imaging probe for the mid-frame.