US 2019/0159743 A1 · METHODS AND DEVICES FOR PERFORMING THREE-DIMENSIONAL BLOOD VESSEL RECONSTRUCTION USING ANGIOGRAPHIC IMAGES

Abstract

The disclosure provides a method and device for performing three-dimensional blood vessel reconstruction using angiographic images. The method includes an acquisition step that acquires a first two-dimensional image of the blood vessel in the first projection direction and a corresponding reconstructed three-dimensional model of the blood vessel. The method further includes a simulated light path length determining step that determines simulated optical path length within the blood vessel at a position thereof in the first projection direction based on the three-dimensional model of the blood vessel, and a three-dimensional reconstruction adjustment step that adjusts reconstruction parameters of the three-dimensional model of the blood vessel, based on the simulated optical path length within the blood vessel at the position in the first projection direction, intensity value at the corresponding position of the blood vessel in the first two-dimensional image and a relationship between intensity values at each position of a blood vessel in a two-dimensional image and optical path length at the corresponding position. This method considers the intensity values of two-dimensional images and can calibrate the three-dimensional model of blood vessels to improve the accuracy of three-dimensional models of blood vessels.

Claims20

Dependent claims

A computer-implemented method for performing three-dimensional blood vessel reconstruction using angiographic images of a patient, wherein the computer-implemented method comprises:

acquiring a first two-dimensional image of a blood vessel in a first projection direction and a three-dimensional model of the blood vessel;
determining, by a processor, a simulated optical path length within the blood vessel at a position thereof in the first projection direction based on the three-dimensional model of the blood vessel;
and
adjusting, by the processor, reconstruction parameters of the three-dimensional model of the blood vessel, based on the simulated optical path length within the blood vessel at the position in the first projection direction, intensity value at the corresponding position of the blood vessel in the first two-dimensional image, and a relationship between the intensity value and an optical path length at the corresponding position.

1 more element

A device for performing three-dimensional blood vessel reconstruction using angiographic images of a patient, comprising:

an interface configured to receive angiographic images in multiple projection directions of a blood vessel, including a first two-dimensional image in a first projection direction;
a processor, configured to:
reconstruct a three-dimensional model of the blood vessel using reconstruction parameters based on the angiographic images in multiple projection directions received from the interface;
determine a simulated optical path length within the blood vessel at a position in the first projection direction based on the reconstructed three-dimensional model of the blood vessel;
and
adjust the reconstruction parameters of the three-dimensional model of the blood vessel, based on the simulated optical path length within the blood vessel at the position in the first projection direction, intensity value at the corresponding position of the blood vessel in the first two-dimensional image, and a relationship between the intensity value and an optical path length at the corresponding position.

3 more elements

A non-transitory computer-readable medium having a computer program stored thereon, wherein the computer program, when executed by at least one processor, performs a method for performing three-dimensional blood vessel reconstruction using angiographic images of a patient, wherein the method comprises:

acquiring a first two-dimensional image of a blood vessel in a first projection direction and a three-dimensional model of the blood vessel;
determining a simulated optical path length within the blood vessel at a position thereof in the first projection direction based on the three-dimensional model of the blood vessel;
and
adjusting reconstruction parameters of the three-dimensional model of the blood vessel, based on the simulated optical path length within the blood vessel at the position in the first projection direction, intensity value at the corresponding position of the blood vessel in the first two-dimensional image, and a relationship between the intensity value and an optical path length at the corresponding position.

1 more element

Dependencies are inferred from the claim text.

Methods and devices for performing three-dimensional blood vessel reconstruction using angiographic images

Life of this patent

Methods and devices for performing three-dimensional blood vessel reconstruction using angiographic images

Life of this patent

Abstract

Claims20