Method and apparatus for determining functional parameters in a radiological apparatus
First Claim
1. A radiographic imaging method using an apparatus comprising means for providing a source of radiation and means for detecting the radiation installed on a mobile support capable of movement with respect to means for supporting an object comprising:
- driving the mobile support completely along a given movement with respect to the means for supporting the object, the given movement defined by a sequence of movements that captures a sequence 2D images;
processing the complete sequence of images of a region of the object, acquired by the means for detection during the given movement of the mobile support with respect to the means for supporting the object to reconstitute a 3D model of the region; and
driving the mobile support so that it carries out the complete given movement repetitively to form a periodically refreshed complete 3D model of the object.
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Abstract
A method and apparatus for determining a set of functional parameters using a fluoroscopic radiography apparatus of the type comprising an X-ray source, a detector or recorder of the radiation facing the source, the source and the detector or recorder being installed on a mobile support capable of movement with respect to a table placed between the source and the detector or recorder on which a patient with a region of interest to be X-rayed will be placed. The method comprises a) movement of the support following a given movement with respect to the table, repeated during a given time; b) acquisition by the detector or recorder of a series of images of the region of interest during movement of the support with respect to the table; c) reconstitution of a series of three-dimensional models of the region of interest, starting from a series of acquired images; and d) determination of all functional parameters.
21 Citations
33 Claims
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1. A radiographic imaging method using an apparatus comprising means for providing a source of radiation and means for detecting the radiation installed on a mobile support capable of movement with respect to means for supporting an object comprising:
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driving the mobile support completely along a given movement with respect to the means for supporting the object, the given movement defined by a sequence of movements that captures a sequence 2D images; processing the complete sequence of images of a region of the object, acquired by the means for detection during the given movement of the mobile support with respect to the means for supporting the object to reconstitute a 3D model of the region; and driving the mobile support so that it carries out the complete given movement repetitively to form a periodically refreshed complete 3D model of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A radiographic imaging device comprising:
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means for providing a source of radiation; means for detecting the radiation; the means for providing radiation and the means for detecting radiation disposed on a mobile support capable of moving with respect to means for supporting an object on which the object can be placed; means for control capable of driving the mobile support in movement with respect to the means for supporting the object; means for processing capable of reconstituting and presenting a 3D model of an imaged region of the object, starting from a sequence of 2D images acquired of the region by the means for detection during a given movement of the mobile support with respect to the means for supporting the object, the given movement defined by a sequence of movements that captures the sequence of 2D images; the means for control being programmed to control driving movement of the mobile support so that it carries out the complete given movement repetitively; the means for processing forming a periodically refreshed complete 3D model to the complete given movement repetitively carried out; and the means for processing comprising means for continuously memorizing or storing the sequence of 2D images corresponding to a number of images necessary for reconstitution of a 3D model on a sliding window, and means for continuously implementing a method for reconstitution of the 3D model on this sliding window. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method to determine a set of functional parameters using a radiography device of the type comprising means for providing a source of radiation, means for recording facing the source, the source and the means for recording being installed on a mobile support capable of moving with respect to means for supporting an object placed between the source and means for recording, and on which the object with a region of interest to be imaged will be placed, comprising:
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moving the support following a given movement with respect to the means for support, the given movement defined by a sequence of movements that captures a sequence of 2D images, the given movement repeated during a given time; acquisition by the means for recording of the complete sequence of images of the region of interest during the given movement of the mobile support with respect to the means for support; reconstitution of a series of complete three-dimensional models of the region of interest, starting from the sequence of acquired images; and determination of functional parameters associated with the region of interest, starting from the series of complete three-dimensional models; wherein the sequence of 2D images is continuously memorized or stored, on a sliding window, corresponding to a number of images necessary for reconstitution of a 3D model, and processing is applied for continuous reconstitution of the 3D model on this sliding window in response to the given movement repeated during the given time. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification