IP Library Granted Patent US 9,081,721
Granted Patent B1
US 9,081,721 · App. 14/577,705 · Granted Jul 14, 2015

Systems and methods for correction of artificial deformation in anatomic modeling

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Quick Facts
Patent No.
US 9,081,721
App. No.
14/577,705
Granted
Jul 14, 2015
Kind
B1
Abstract

Systems and methods are disclosed for correcting for artificial deformations in anatomical modeling. One method includes obtaining an anatomic model; obtaining information indicating a presence of an artificial deformation of the anatomic model; identifying a portion of the anatomic model associated with the artificial deformation; estimating a non-deformed local area corresponding to the portion of the anatomic model; and modifying the portion of the anatomic model associated with the artificial deformation, based on the estimated non-deformed local area.

Claims (41)

1. A computer-implemented method of correcting anatomical modeling, the method comprising:

obtaining an anatomic model including a patient's vasculature;

obtaining information indicating a presence of an artificial deformation of the anatomic model;

identifying a portion of the anatomic model associated with the artificial deformation;

estimating a non-deformed anatomic dimension of a blood vessel of the patient's vasculature; and

modifying the portion of the anatomic model associated with the artificial deformation, based on the estimated non-deformed anatomic dimension.

2. The method of claim 1 , wherein the artificial deformation is based on a misregistration, a motion artifact, or myocardial bridging.

3. The method of claim 1 , wherein the anatomic model is a blood vessel model and the anatomic dimension includes an estimated cross-sectional area for a non-deformed blood vessel of the blood vessel model.

4. The method of claim 3 , further including:

estimating the non-deformed anatomic dimension by determining a constant radius centered on a centerline of the blood vessel model.

5. The method of claim 3 , further including:

estimating the non-deformed anatomic dimension based on a computed or stored idealized radius.

6. The method of claim 1 , wherein the anatomic model includes implicit or explicit local area information.

7. The method of claim 1 , wherein the information indicating the presence of the artificial deformation is obtained based on a user input.

8. The method of claim 1 , wherein the information indicating the presence of the artificial deformation is obtained based on a computation between one or more images, measuring an image artifact, employing a segmentation algorithm, or a combination thereof.

9. A system for correcting anatomical modeling, the system comprising:

a data storage device storing instructions for correcting anatomical modeling; and

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

obtaining an anatomic model including a patient's vasculature;

obtaining information indicating a presence of an artificial deformation of the anatomic model;

identifying a portion of the anatomic model associated with the artificial deformation;

estimating a non-deformed anatomic dimension of a blood vessel of the patient's vasculature; and

modifying the portion of the anatomic model associated with the artificial deformation, based on the estimated non-deformed anatomic dimension.

10. The system of claim 9 , wherein the artificial deformation is based on a misregistration, a motion artifact, or myocardial bridging.

11. The system of claim 9 , wherein the anatomic model is a blood vessel model and the anatomic dimension includes an estimated cross-sectional area for a non-deformed blood vessel of the blood vessel model.

12. The system of claim 11 , wherein the at least one computer system is further configured for:

estimating the non-deformed anatomic dimension by determining a constant radius centered on a centerline of the blood vessel model.

13. The system of claim 11 , wherein the at least one computer system is further configured for:

estimating the non-deformed anatomic dimension based on a computed or stored idealized radius.

14. The system of claim 9 , wherein the anatomic model includes implicit or explicit local area information.

15. The system of claim 9 , wherein the information indicating the presence of the artificial deformation is obtained based on a user input.

16. The system of claim 9 , wherein the information indicating the presence of the artificial deformation is obtained based on a computation between one or more images, measuring an image artifact, employing a segmentation algorithm, or a combination thereof.

17. A non-transitory computer readable medium for use on a computer system containing computer-executable programming instructions for performing a method of correcting anatomical modeling, the method comprising:

obtaining an anatomic model including a patient's vasculature;

obtaining information indicating a presence of an artificial deformation of the anatomic model;

identifying a portion of the anatomic model associated with the artificial deformation;

estimating a non-deformed anatomic dimension of a blood vessel of the patient's vasculature; and

modifying the portion of the anatomic model associated with the artificial deformation, based on the estimated non-deformed anatomic dimension.

18. The non-transitory computer readable medium of claim 17 , wherein the artificial deformation is based on a misregistration, a motion artifact, or myocardial bridging.

19. The non-transitory computer readable medium of claim 17 , wherein the anatomic model is a blood vessel model and the anatomic dimension includes an estimated cross-sectional area for a non-deformed blood vessel of the blood vessel model.

20. The non-transitory computer readable medium of claim 16 , wherein the information indicating presence of the artificial deformation is based on a computation between one or more images, measuring an image artifact, employing a segmentation algorithm, or a combination thereof.

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 May 4, 2015
From: GRADY, LEO JOHN; SCHAAP, MICHIEL; KHEM, SOPHIE; WILKES, SARAH; BAI, YING
To: HEARTFLOW, INC.
Reel/Frame 035554/0664 →