Radioactive emission detector equipped with a position tracking system and utilization thereof with medical systems and in medical procedures
First Claim
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1. A device for obtaining a distribution of a radioactivity emitting source in a system-of-coordinates, the device comprising:
- (a) a radioactive emission detector for imaging a three-dimensional space comprising the radioactivity emitting source;
(b) a positioning instrument configured for carrying said radioactive emission detector to perform a plurality of radioactivity measurements of a radioactivity emitting source from a plurality of locations and directions;
(c) a position tracking device which monitors a position of said radioactive emission detector in relation to said three-dimensional space; and
(d) a data processor which reconstructs a three dimensional (3D) image of the radioactivity emitting source from a plurality of said radioactivity measurements with a varying spatial resolution and obtains a positional distribution of said radioactive emitting source using measurements of a same area from multiple locations having different resolution according to said position.
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Abstract
A system for calculating a position of a radioactivity emitting source in a system-of-coordinates, the system comprising (a) a radioactive emission detector; (b) a position tracking system being connected to and/or communicating with the radioactive emission detector; and (c) a data processor being designed and configured for receiving data inputs from the position tracking system and from the radioactive emission detector and for calculating the position of the radioactivity emitting source in the system-of-coordinates.
720 Citations
27 Claims
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1. A device for obtaining a distribution of a radioactivity emitting source in a system-of-coordinates, the device comprising:
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(a) a radioactive emission detector for imaging a three-dimensional space comprising the radioactivity emitting source; (b) a positioning instrument configured for carrying said radioactive emission detector to perform a plurality of radioactivity measurements of a radioactivity emitting source from a plurality of locations and directions; (c) a position tracking device which monitors a position of said radioactive emission detector in relation to said three-dimensional space; and (d) a data processor which reconstructs a three dimensional (3D) image of the radioactivity emitting source from a plurality of said radioactivity measurements with a varying spatial resolution and obtains a positional distribution of said radioactive emitting source using measurements of a same area from multiple locations having different resolution according to said position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for reconstructing a radiopharmaceutical uptaking portion of a body component within a subject, the method comprising:
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(a) providing radioactive emission detector supported by a positioning instrument; (b) using said radioactive emission detector for performing a plurality of radioactivity measurements of a radiopharmaceutical uptaking portion from a plurality of locations and directions; (c) receiving data inputs from said radioactive emission detector; and (d) reconstructing according to said data inputs a three dimensional (3D) model of said radiopharmaceutical uptaking portion; wherein said performing comprises monitoring a position of said radioactive emission detector in relation to said radiopharmaceutical uptaking portion and calculating a spatial 3D resolution of said three dimensional model, and wherein said three dimensional model is reconstructed using measurements of a same area from multiple locations having different spatial resolution according to said locations. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for scanning a radioactivity emitting source in a three dimensional space comprising a radioactivity emitting source, comprising:
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using a positioning instrument for carrying a radioactive emission detector to perform a scan from a plurality of directions at multiple sites around said three dimensional space while changing a position of said radioactive emission detector in at least three degrees of freedom to image the radioactivity emitting source; monitoring a positional change of said radioactive emission detector in relation to the three dimensional space during said scan; computing a spatial 3D resolution change according to said positional change, using measurements with a varying spatial resolution of a same area from multiple locations at different sensitivities; and generating a three dimensional (3D) image of said three dimensional space according to said spatial 3D resolution change. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification