IP Library Granted Patent US 10,600,181
Granted Patent B2
US 10,600,181 · App. 15/852,119 · Granted Mar 24, 2020

Systems and methods for probabilistic segmentation in anatomical image processing

Inventors: Peter Kersten Petersen (Palo Alto, CA); Michiel Schaap (Mountain View, CA); Leo Grady (Milbrae, CA)
Assignee: HeartFlow, Inc.
G06T7/0014G06K9/6277G06T7/11G06T7/13G06T7/143G06T7/60A61B6/504G06T2200/04G06T2207/20076G06T2207/20081G06T2207/20084G06T2207/30101G06T2207/30104G06T2207/30172
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Quick Facts
Patent No.
US 10,600,181
App. No.
15/852,119
Granted
Mar 24, 2020
Kind
B2
Abstract

Systems and methods are disclosed for performing probabilistic segmentation in anatomical image analysis, using a computer system. One method includes receiving a plurality of images of an anatomical structure; receiving one or more geometric labels of the anatomical structure; generating a parametrized representation of the anatomical structure based on the one or more geometric labels and the received plurality of images; mapping a region of the parameterized representation to a geometric parameter of the anatomical structure; receiving an image of a patient's anatomy; and generating a probability distribution for a patient-specific segmentation boundary of the patient's anatomy, based on the mapping of the region of the parameterized representation of the anatomical structure to the geometric parameter of the anatomical structure.

Claims (52)

1. A computer-implemented method of performing probabilistic segmentation in anatomical image analysis, the method comprising:

receiving a plurality of images of an anatomical structure;

receiving one or more geometric labels of the anatomical structure;

generating a parametrized representation of the anatomical structure based on the one or more geometric labels and the received plurality of images;

determining a distance from a point on a centerline of the anatomical structure to a point on a lumen boundary of the anatomical structure;

mapping a region of the parameterized representation to the determined distance;

receiving an image of a patient's anatomy; and

generating a probability distribution for a patient-specific segmentation boundary of the patient's anatomy, based on the mapping of the region of the parameterized representation to the determined distance.

2. The method of claim 1 , further comprising:

generating a statistical confidence value based on the probability distribution.

3. The method of claim 1 , further comprising:

generating the patient-specific segmentation boundary of the patient's anatomy, based on the probability distribution.

4. The method of claim 1 , wherein the anatomical structure comprises a blood vessel and the patient's anatomy comprises a blood vessel of the patient's vasculature.

5. The method of claim 1 , wherein the geometric labels include annotations of a vessel lumen boundary, centerline, surface, or a combination thereof.

6. The method of claim 1 , further comprising:

generating a statistical confidence score of the determined distance.

7. The method of claim 1 , further comprising:

generating the patient-specific segmentation boundary based on the determined distance.

8. The method of claim 1 , further comprising:

generating, for each image of the plurality of images, a parameterized representation of the anatomical structure, wherein the parameterized representation includes a three-dimensional volumetric model.

9. A system for performing probabilistic segmentation in anatomical image analysis, the system comprising:

a server storing instructions for performing probabilistic segmentation in anatomical image analysis; and

a processor configured to execute the instructions to perform a method including:

receiving a plurality of images of an anatomical structure;

receiving one or more geometric labels of the anatomical structure;

generating a parametrized representation of the anatomical structure based on the one or more geometric labels and the received plurality of images;

determining a distance from a point on a centerline of the anatomical structure to a point on a lumen boundary of the anatomical structure;

mapping a region of the parameterized representation to the determined distance;

receiving an image of a patient's anatomy; and

generating a probability distribution for a patient-specific segmentation boundary of the patient's anatomy, based on the mapping of the region of the parameterized representation to the determined distance.

10. The system of claim 9 , wherein the system is further configured for:

generating a statistical confidence value based on the probability distribution.

11. The system of claim 9 , wherein the system is further configured for:

generating the patient-specific segmentation boundary of the patient's anatomy, based on the probability distribution.

12. The system of claim 9 , wherein the anatomical structure comprises a blood vessel and the patient's anatomy comprises a blood vessel of the patient's vasculature.

13. The system of claim 9 , wherein the geometric labels include annotations of a vessel lumen boundary, centerline, surface, or a combination thereof.

14. The system of claim 9 , wherein the system is further configured for:

generating a statistical confidence score of the determined distance.

15. The system of claim 9 , wherein the system is further configured for:

generating the patient-specific segmentation boundary based on the determined distance.

16. A non-transitory computer readable medium for use on a computer system containing computer-executable programming instructions for a method of performing probabilistic segmentation in anatomical image analysis, the method comprising:

receiving a plurality of images of an anatomical structure;

receiving one or more geometric labels of the anatomical structure;

generating a parametrized representation of the anatomical structure based on the one or more geometric labels and the received plurality of images;

determining a distance from a point on a centerline of the anatomical structure to a point on a lumen boundary of the anatomical structure;

mapping a region of the parameterized representation to the determined distance;

receiving an image of a patient's anatomy; and

generating a probability distribution for a patient-specific segmentation boundary of the patient's anatomy, based on the mapping of the region of the parameterized representation to the determined distance.

17. The non-transitory computer readable medium of claim 16 , the method further comprising:

generating a statistical confidence value based on the probability distribution.

18. The non-transitory computer readable medium of claim 16 , the method further comprising:

generating the patient-specific segmentation boundary of the patient's anatomy, based on the probability distribution.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Sep 11, 2025
From: HAYFIN SERVICES LLP
To: HEARTFLOW, INC.
Reel/Frame 072876/0775 →
RELEASE OF SECURITY INTEREST Recorded Jun 21, 2024
From: HAYFIN SERVICES LLP
To: HEARTFLOW, INC.
Reel/Frame 067801/0032 →
SECURITY INTEREST Recorded Jun 18, 2024
From: HEARTFLOW, INC.
To: HAYFIN SERVICES LLP
Reel/Frame 067775/0966 →
SECURITY INTEREST Recorded Jan 20, 2021
From: HEARTFLOW, INC.
To: HAYFIN SERVICES LLP
Reel/Frame 055037/0890 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2019
From: PETERSEN, PETER KERSTEN; SCHAAP, MICHIEL; GRADY, LEO
To: HEARTFLOW, INC.
Reel/Frame 048483/0195 →
Continuity (2)
Provisional Application 62438514 · Dec 23, 2016
Related Publication 20180182101A1 · Jun 28, 2018
Cited By (4)
US 12,186,021 US 12,446,839 US 12,471,997 US 12,670,998