US 12,394,080 B2
Intraluminal image-based vessel diameter determination and associated devices, systems, and methods
Nikhil Sreedhar Rajguru, San Diego, CA (US); Bernhard Sturm, Davis, CA (US); and David Chalyan, Oceanside, CA (US)
Assigned to PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
Appl. No. 17/782,733
Filed by PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
PCT Filed Dec. 4, 2020, PCT No. PCT/EP2020/084656
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/115958, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/946,097, filed on Dec. 10, 2019.
Prior Publication US 2023/0008714 A1, Jan. 12, 2023
Int. Cl. G06T 7/62 (2017.01); A61B 5/107 (2006.01); A61B 34/10 (2016.01)
CPC G06T 7/62 (2017.01) [A61B 5/1076 (2013.01); A61B 34/10 (2016.02); A61B 2034/108 (2016.02); G06T 2207/10101 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/30101 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An intravascular imaging system comprising:
an intravascular imaging catheter or guidewire configured to be positioned within a blood vessel of a patient;
a processor circuit in communication with the intravascular imaging catheter or guidewire, wherein the processor circuit is configured to:
receive a plurality of cross-sectional images of the blood vessel from the intravascular imaging catheter or guidewire;
perform an anatomical measurement of the blood vessel using image processing of at least one cross-sectional image of the plurality of cross-sectional images;
generate an idealized shape comprising:
a circular cross-section; and
a size comprising a value of the anatomical measurement;
calculate a diameter of the idealized shape;
calculate a stent diameter that is equal to the diameter of the idealized shape multiplied by a scaling factor; and
output the stent diameter to a display in communication with the processor circuit.