Optimum treatment planning during coronary intervention by simultaneous simulation of a continuum of outcomes

Patent metadata

Field	Value
Publication number	US-11357573-B2
Application number	US-201916394092-A
Country	US
Kind code	B2
Filing date	Apr 25, 2019
Priority date	Apr 25, 2019
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A technique relates to coronary reconstruction. Angiogram data associated with cardiac catheterization of an artery for a subject is received, where a contrasting agent is used during the cardiac catheterization. Frames that match from the angiogram data are selected, the frames being from different views. Two-dimensional ordered point clouds for the frames are formed. A three-dimensional ordered point cloud of a reconstructed coronary artery for the subject from the two-dimensional ordered point clouds of the frames is formed. Observed contrast motion caused by the contrasting agent onto the reconstructed coronary artery is mapped, the reconstructed coronary artery thereby providing a three-dimensional model of the artery of the subject during the cardiac catheterization.

First claim

What is claimed is:

1. A computer-implemented method for generating display of a coronary reconstruction, the computer-implemented method comprising: receiving, by a computer system, angiogram data during cardiac catheterization of an artery for a subject, wherein a contrasting agent is used during the cardiac catheterization; selecting, by the computer system, frames that match from the angiogram data according to a same cycle of a heart for an electrocardiogram trace, the frames being from different views; forming two-dimensional ordered point clouds for the frames; forming a three-dimensional ordered point cloud of a reconstructed coronary artery for the subject from the two-dimensional ordered point clouds of the frames; generating, for graphical display by the computer system, a three-dimensional model of the reconstructed coronary artery of the subject during the cardiac catheterization by mapping observed contrast motion caused by the contrasting agent onto the reconstructed coronary artery; and performing, by the computer system, a simulation of hemodynamics for the reconstructed coronary artery during the cardiac catheterization; and rating multiple outcomes of the simulation based at least in part on heart catheterization data while the subject is undergoing the cardiac catheterization.

2. The computer-implemented method of claim 1 , wherein forming the two-dimensional ordered point clouds for the frames comprises segmenting, by the computer system, the frames into an arterial structure, thereby separating out a background part and a catheter part; and
wherein the simulation generates a representation of an in-vivo blood pressure field that can be probed at locations upstream and downstream of a stenosis, thereby allowing the catheter part to be free of a pressure sensor.

3. The computer-implemented method of claim 1 , wherein forming the two-dimensional ordered point clouds for the frames further comprises:
skeletonizing, by the computer system, an arterial structure in the frames into centerline points, the centerline points being associated with a radius; and
ordering, by the computer system, the centerline points to generate the two-dimensional ordered point clouds for the frames.

4. The computer-implemented method of claim 1 , wherein forming the three-dimensional ordered point cloud from the two-dimensional ordered point clouds of the frames comprises projecting points of the two-dimensional ordered point clouds for the frames of the different views to create the three-dimensional ordered point cloud.

5. The computer-implemented method of claim 1 further comprising tuning coronary arterial resistances in the simulation by matching simulated contrast motion to the observed contrast motion in the angiogram data associated with the cardiac catheterization for the subject, thereby generating the hemodynamics of the reconstructed coronary artery for the subject along with identifying stenosis in the reconstructed coronary artery.

6. The computer-implemented method of claim 1 , wherein:
the reconstructed coronary artery comprises one or more locations of stenosis; and
the computer-implemented further comprises, for the reconstructed coronary artery, performing a simulation of alternate treatment plans designed to correct the one or more locations of stenosis.

7. The computer-implemented method of claim 6 , wherein performing the simulation of the alternate treatment plans to correct the one or more locations of stenosis displays alternate treatments for the one or more locations of stenosis, the alternate treatments comprise one or more stents and one or more arterial bypass grafts.

8. A system for generating display of a coronary reconstruction, the system comprising: a processor; and memory communicatively coupled to the processor and comprising computer-executable instructions that, when executed by the processor, cause the processor to perform a method comprising: receiving, by the processor, angiogram data during cardiac catheterization of an artery for a subject, wherein a contrasting agent is used during the cardiac catheterization; selecting, by the processor, frames that match from the angiogram data according to a same cycle of a heart for an electrocardiogram trace, the frames being from different views; forming two-dimensional ordered point clouds for the frames; forming a three-dimensional ordered point cloud of a reconstructed coronary artery for the subject from the two-dimensional ordered point clouds of the frames; generating, for graphical display by the processor, a three-dimensional model of the reconstructed coronary artery of the subject during the cardiac catheterization by mapping observed contrast motion caused by the contrasting agent onto the reconstructed coronary artery; and performing, by the processor, a simulation of hemodynamics for the reconstructed coronary artery during the cardiac catheterization; and rating multiple outcomes of the simulation based at least in part on heart catheterization data while the subject is undergoing the cardiac catheterization.

9. The system of claim 8 , wherein forming the two-dimensional ordered point clouds for the frames comprises segmenting, by the processor, the frames into an arterial structure, thereby separating out a background part and a catheter part; and
wherein the simulation generates a representation of an in-vivo blood pressure field that can be probed at locations upstream and downstream of a stenosis, thereby allowing the catheter part to be free of pressure sensor.

10. The system of claim 8 , wherein forming the two-dimensional ordered point clouds for the frames further comprises:
skeletonizing, by the computer system, an arterial structure in the frames into centerline points, the centerline points being associated with a radius; and
ordering, by the computer system, the centerline points to generate the two-dimensional ordered point clouds for the frames.

11. The system of claim 8 , wherein forming the three-dimensional ordered point cloud from the two-dimensional ordered point clouds of the frames comprises projecting points of the two-dimensional ordered point clouds for the frames of the different views to create the three-dimensional ordered point cloud.

12. The system of claim 8 , further comprising tuning coronary arterial resistances in the simulation by matching simulated contrast motion to the observed contrast motion in the angiogram data associated with the cardiac catheterization for the subject, thereby generating the hemodynamics of the reconstructed coronary artery for the subject along with identifying stenosis in the reconstructed coronary artery.

13. The system of claim 8 , wherein:
the reconstructed coronary artery comprises one or more locations of stenosis; and
the system is further configured to, for the reconstructed coronary artery, perform a simulation of alternate treatment plans designed to correct the one or more locations of stenosis.

14. The system of claim 13 , wherein performing the simulation of the alternate treatment plans to correct the one or more locations of stenosis displays alternate treatments for the one or more locations of stenosis, the alternate treatments comprising one or more stents and one or more arterial bypass grafts.

15. A computer program product for generating display of a coronary reconstruction, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer system to cause the compu

Assignees

• IBM

Inventors

• Rawlinson Andrew
• Halupka Kerry
• Moore Stephen Michael
• Zhuk Sergiy

Classifications

• A61B6/481

  involving the use of contrast agents · CPC title

• G06T2207/20044

  Skeletonization; Medial axis transform · CPC title

• A61B6/503

  for diagnosis of the heart · CPC title

• A61B5/026

  Measuring blood flow {(A61B3/1233, A61B3/1241 take precedence)} · CPC title

• G16H50/00

  ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics · CPC title