Percutaneous coronary intervention (PCI) planning interface with pressure data and vessel data and associated devices, systems, and methods

An intravascular system, comprising:

• an intravascular catheter or guidewire configured to be positioned within a blood vessel of a patient, wherein the intravascular catheter or guidewire comprises an intravascular imaging sensor configured to obtain a plurality of intravascular images at a plurality of locations along the blood vessel;
• and
• a processor configured for communication with the intravascular catheter or guidewire, wherein the processor is configured to:
• co-register the plurality of intravascular images with an extraluminal image of the blood vessel;
• provide, on a display in communication with the processor, a graphical user interface (GUI) for planning a treatment to the blood vessel, wherein the GUI comprises a first screen display comprising:
• the extraluminal image of the blood vessel;
• and
• at least one of the plurality of intravascular images;
• determine a simulated effect of the treatment to the blood vessel at one or more of the plurality of locations;
• and
• modify the GUI based on the determination such that the GUI comprises a second screen display based on the simulated effect.