Alignment between intravascular images and extravascular images of cardiac vasculature

At least one non-transitory machine readable storage device, comprising a plurality of instructions that in response to being executed by a processor of a complementary image modality correlation and visualization system cause the processor to:

• receive an extravascular image of a vessel of a patient;
• receive a series of intravascular images of the vessel of the patient, the series of intravascular images comprising a plurality of frames;
• identify a plurality of vessel fiducials represented in the extravascular image and the series of intravascular images;
• determine an angular offset for at least one or more of the plurality of frames based in part on an angle of orientation of the plurality of vessel fiducials in the extravascular image and the series of intravascular images;
• and
• generate an aligned series of intravascular images comprising the plurality of frames,
• wherein the one or more of the plurality of frames are rotated based on the angular offset in the aligned series of intravascular images.

A method for a complementary image modality correlation and visualization system, comprising:

• receiving, by a processor, an extravascular image of a vessel of a patient;
• receiving, by the processor, a series of intravascular images of the vessel of the patient, the series of intravascular images comprising a plurality of frames;
• identifying, by the processor, a plurality of vessel fiducials represented in the extravascular image and the series of intravascular images;
• determining, by the processor, an angular offset for at least one or more of the plurality of frames based in part on an angle of orientation of the plurality of vessel fiducials in the extravascular image and the series of intravascular images;
• generating, by the processor, an aligned series of intravascular images comprising the plurality of frames;
• and
• generating, by the processor, a graphical user interface (GUI), the GUI comprising visual depictions of the extravascular image and the aligned series of intravascular images,
• wherein the one or more of the plurality of frames is rotated based on the angular offset in the aligned series of intravascular images.