Computer-implemented method, computer program and diagnostic system, in particular for determining at least one geometric feature of a section of a blood vessel

摘要

The invention relates to a computer-implemented method (10) for determining at least one geometric feature of a section (901, 902, 903, ...) of a blood vessel (88) in an operating area (36) from the group comprising length (L), wall thickness (d ), Inner diameter (D) and outer diameter (G) of the section (901, 902, 903, ...) of the blood vessel (88) in which at least one image (801, 802, 803, 804, ...) of the section (901, 902, 903, ...) of the blood vessel (88) is provided in the operating area (36). According to the invention, an adapted blood vessel model (M) for the section (901, 902, 903, ...) of the blood vessel (88) is created by adapting a blood vessel model (M) which includes the section (901, 902, 903,. ..) of the blood vessel (88) as a flow channel with a wall delimiting it and with an axis of symmetry, is provided to at least one of the provided images (801, 802, 803, 804 ,, ...) by means of image processing, with a center line of the section (901, 902, 903, ...) of the blood vessel (88) is determined in the form of a coherent pixel line in the at least one provided image (801, 802, 803, 804, ...), with a spatial position the side of the wall that delimits the flow channel and faces the axis of symmetry in the at least one image (801, 802, 803, 804 ,, ...) provided on the basis of the center line and the at least one image (801, 802, 803, 804 ,, ...) is determined and the at least one Geometriemerkm al of the section (901, 902, 903, ...) of the blood vessel (88) in the operating area is derived from the adapted blood vessel model. The invention also relates to a computer-implemented method for determining the length of a contiguous pixel line in an image and a system for determining at least one geometric feature of a section of an object.