Calcium Arc Computation Relative to Lumen Center
AssigneeLightLab Imaging, Inc.
InventorsTimothy Preston Connelly, Christopher Erik Griffin, Shimin Li
Life of this patent
Estimating the term…
Abstract
Methods, systems, and apparatus, including computer-readable storage media for calculating lumen-centered calcium arcs. A method includes receiving, by one or more processors, an image frame and an identification of a region of plaque in the image frame. The image frame is taken while the imaging device is in a lumen depicted in the image frame. The one or more processors identify a lumen-center of the lumen in the image frame, and generate a lumen-centered are having a coverage angle centered on the lumen-center, using at least the lumen-center.
Claims20
A method comprising:
- receiving, by one or more processors, an image frame and an identification of a region of plaque in the image frame, wherein the image frame is taken by an imaging device while the imaging device was in a lumen depicted in the image frame;
- identifying, by the one or more processors, a lumen-center of the lumen depicted in the image frame;
- and
- generating, by the one or more processors and using at least the lumen-center, a lumen-centered arc having a coverage angle centered on the lumen-center.
A system comprising:
- one or more processors configured to:
- receive an image frame and an identification of a region of plaque in the image frame, wherein the image frame is taken by an imaging device while the imaging device was in a lumen depicted in the image frame;
- identify a lumen-center of the lumen depicted in the image frame;
- and
- generate, using at least the lumen-center, a lumen-centered arc having a coverage angle centered on the lumen-center.
The system of claim 2214, wherein converting the positions of the pixels further comprises:
- converting the positions of the pixels from polar coordinates relative to the device-center to Cartesian coordinates;
- and
- converting the positions of the pixels from Cartesian coordinates to polar coordinates relative to the lumen-center.
One or more non-transitory computer-readable storage media storing instructions that when executed by one or more processors, causes the one or more processors to perform operations comprising:
- receiving, by one or more processors, an image frame and an identification of a region of plaque in the image frame, wherein the image frame is taken by an imaging device while the imaging device was in a lumen depicted in the image frame;
- identifying, by the one or more processors, a lumen-center of the lumen depicted in the image frame;
- and
- generating, by the one or more processors and using at least the lumen-center, a lumen-centered arc having a coverage angle centered on the lumen-center.
Dependencies are inferred from the claim text.