Rotational angiography based hybrid 3-D reconstruction of coronary arterial structure
First Claim
1. A method of generating a hybrid three dimensional reconstruction of a vascular structure affected by periodic motion, the method comprising:
- placing an object affected by periodic motion to be imaged in an imaging region of an x-ray system, the object having a vascular structure;
acquiring at least two x-ray images of the vascular structure;
obtaining indicia of the phases of periodic motion and correlating the indicia with each of the at least two x-ray images;
selecting at least two x-ray images from a similar phase of periodic motion;
generating a three dimensional modeled segment of a region of interest in the vascular structure, the modeled segment reconstructed using the selected x-ray images from a similar phase of periodic motion, the region of interest only a portion of the imaged vascular structure;
generating a three dimensional volumetric reconstruction of a vascular structure larger than the modeled segment;
combining the modeled segment of interest and the volumetric reconstruction of the larger vascular structure; and
displaying in human readable form the combined reconstructed vascular model and volumetric reconstruction.
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Abstract
A method and apparatus of generating a hybrid three dimensional reconstruction of a vascular structure affected by periodic motion is disclosed. At least two x-ray images of the vascular structure are acquired. Indicia of the phases of periodic motion are obtained and correlated. Images from a similar phase of periodic motion are selected and a three dimensional modeled segment of a region of interest in the vascular structure is generated. A three dimensional volumetric reconstruction of a vascular structure is generated that is larger than the modeled segment. The modeled segment of interest and the volumetric reconstruction of the larger vascular structure are combined and displayed in human readable form.
145 Citations
25 Claims
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1. A method of generating a hybrid three dimensional reconstruction of a vascular structure affected by periodic motion, the method comprising:
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placing an object affected by periodic motion to be imaged in an imaging region of an x-ray system, the object having a vascular structure; acquiring at least two x-ray images of the vascular structure; obtaining indicia of the phases of periodic motion and correlating the indicia with each of the at least two x-ray images; selecting at least two x-ray images from a similar phase of periodic motion; generating a three dimensional modeled segment of a region of interest in the vascular structure, the modeled segment reconstructed using the selected x-ray images from a similar phase of periodic motion, the region of interest only a portion of the imaged vascular structure; generating a three dimensional volumetric reconstruction of a vascular structure larger than the modeled segment; combining the modeled segment of interest and the volumetric reconstruction of the larger vascular structure; and displaying in human readable form the combined reconstructed vascular model and volumetric reconstruction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. An apparatus for generating a hybrid three dimensional reconstruction of a vascular structure affected by periodic motion, the apparatus comprising:
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means for supporting an object affected by periodic motion to be imaged in an imaging region of an x-ray system, the object having a vascular structure; means for acquiring at least two x-ray images of the vascular structure; means for obtaining indicia of the phases of periodic motion and correlating the indicia with each of the at least two x-ray images; means for selecting at least two x-ray images from a similar phase of periodic motion; means for generating a three dimensional modeled segment of a region of interest in the vascular structure, the modeled segment reconstructed using the selected x-ray images from a similar phase of periodic motion, the region of interest only a portion of the imaged vascular structure; means for generating a three dimensional volumetric reconstruction of a vascular structure larger than the modeled segment; means for combining the modeled segment of interest and the volumetric reconstruction of the larger vascular structure; and means for displaying in human readable form the combined reconstructed vascular model and volumetric reconstruction. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of generating a hybrid three dimensional reconstruction of a vascular structure affected by periodic motion, the method comprising:
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placing an object affected by periodic motion to be imaged in an imaging region of an x-ray system, the object having a vascular structure; acquiring a rotational acquisition of x-ray images of the vascular structure; obtaining indicia of the phases of periodic motion and correlating the indicia with each of the at least two x-ray images; selecting at least two x-ray images from a similar phase of periodic motion; generating a three dimensional modeled segment of a region of interest in the vascular structure, the modeled segment reconstructed using the selected x-ray images from a similar phase of periodic motion, the region of interest only a portion of the imaged vascular structure; generating a three dimensional volumetric reconstruction of a vascular structure larger than the modeled segment; combining the modeled segment of interest and the volumetric reconstruction of the larger vascular structure; and displaying in human readable form the combined reconstructed vascular model and volumetric reconstruction. - View Dependent Claims (18, 20, 21, 22, 23, 24, 25)
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Specification