US 12,229,961 B2
Longitudinal display of coronary artery calcium burden
Gregory Patrick Amis, Westford, MA (US); Ajay Gopinath, Bedford, MA (US); and Mark Hoeveler, Eliot, ME (US)
Assigned to LightLab Imaging, Inc., Westford, MA (US)
Filed by LightLab Imaging, Inc., Westford, MA (US)
Filed on Jul. 6, 2022, as Appl. No. 17/858,468.
Application 17/858,468 is a division of application No. 16/985,623, filed on Aug. 5, 2020, granted, now 11,436,731.
Claims priority of provisional application 62/883,066, filed on Aug. 5, 2019.
Prior Publication US 2022/0335616 A1, Oct. 20, 2022
Int. Cl. G06T 7/00 (2017.01); A61B 5/00 (2006.01); A61B 5/02 (2006.01); G06T 7/38 (2017.01); G06T 11/00 (2006.01); G16H 30/40 (2018.01); G16H 50/30 (2018.01); G16H 50/50 (2018.01)
CPC G06T 7/0016 (2013.01) [A61B 5/02007 (2013.01); A61B 5/7264 (2013.01); A61B 5/7275 (2013.01); A61B 5/743 (2013.01); G06T 7/38 (2017.01); G06T 11/008 (2013.01); G16H 30/40 (2018.01); G16H 50/30 (2018.01); G16H 50/50 (2018.01); G06T 2207/20081 (2013.01); G06T 2207/30104 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of displaying one or more arterial features relative to at least one of a first pullback representation or a second pullback representation, the method comprising:
receiving, by one or more processors, a first group of intravascular frames obtained from a first pullback pre-percutaneous coronary intervention;
detecting, by the one or more processors based on a determined calcium arc or a determined calcium volume, a calcium burden in each frame of the first group of intravascular frames;
scoring, by the one or more processors, the calcium burden in each frame of the first group of intravascular frames;
predicting, by the one or more processors executing a machine learning model, based on the scored calcium burden, stent expansion for a region of interest, wherein:
at least one input into the machine learning model is the scored calcium burden; and
outputting, by the one or more processors, a two-dimensional representation of the first group of intravascular frames, wherein:
the two-dimensional representation is symmetrical about a longest axis of the two-dimensional representation,
the output includes a visual indication corresponding to the predicted stent expansion for the region of interest, and
the visual indication is a severity indicator for stent over or under expansion.