Gamma camera apparatus
First Claim
1. A gamma camera apparatus for detecting gamma rays emitted from a radioisotope administered to an examinee to construct a three-dimensional image representing a distribution of the radioisotope in the examinee, comprising:
- detecting means for detecting gamma rays emitted from the radioisotope in the examinee;
an encoding aperture plate disposed between the examinee and said detecting means;
adjusting means for adjusting the distance from said detecting means to said encoding aperture plate to adjust the position of said encoding aperture plate depending on the depth of an observation position in the examinee; and
processing means for reconstructing a three-dimensional image based on the gamma rays emitted from the radioisotope and detected by said detecting means through said encoding aperture plate.
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Accused Products
Abstract
After the position of a collimator with respect to a gamma camera depending on the position of a detection plane in an examinee, gamma rays radiated from the examinee are detected by a scintillation detector via a collimator and a scintillator, and a signal from the scintillation detector is processed by a signal processing circuit and then transferred to an image reconstructing unit, which reconstructs a three-dimensional image of the radiation source in the examinee and displays the three-dimensional image on a display unit.
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Citations
20 Claims
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1. A gamma camera apparatus for detecting gamma rays emitted from a radioisotope administered to an examinee to construct a three-dimensional image representing a distribution of the radioisotope in the examinee, comprising:
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detecting means for detecting gamma rays emitted from the radioisotope in the examinee;
an encoding aperture plate disposed between the examinee and said detecting means;
adjusting means for adjusting the distance from said detecting means to said encoding aperture plate to adjust the position of said encoding aperture plate depending on the depth of an observation position in the examinee; and
processing means for reconstructing a three-dimensional image based on the gamma rays emitted from the radioisotope and detected by said detecting means through said encoding aperture plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20)
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15. A gamma camera apparatus for detecting gamma rays emitted from a radioisotope administered to an examinee to construct a three-dimensional image representing a distribution of the radioisotope in the examinee, comprising:
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detecting means for detecting gamma rays emitted from the radioisotope in the examinee;
an encoding aperture plate disposed between the examinee and said detecting means;
image reconstructing means for reconstructing a three-dimensional image based on the gamma rays detected by said detecting means;
image display means for displaying the reconstructed three-dimensional image; and
image supply means for supplying an image to be used in superposed relation to said reconstructed three-dimensional image.
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Specification