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

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

• receiving 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, optical path lengths at a plurality of positions of the blood vessel in the three-dimensional model in the first projection direction;
• determining, by the processor, a second two-dimensional image based on the determined optical path lengths at the plurality of positions;
• and
• adjusting the three-dimensional model of the blood vessel, based on a comparison of the first two-dimensional image and the second two-dimensional image.

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

• an interface configured to receive a first two-dimensional image of a blood vessel in a first projection direction and a three-dimensional model of the blood vessel;
• a processor, configured to:
• determine a first optical path length at a selected position of the blood vessel based on the first two-dimensional image;
• determine a second optical path length at the selected position of the blood vessel in the three-dimensional model;
• and
• adjust the three-dimensional model of the blood vessel, based on a comparison of the first optical path length and the second optical path length.