Nuclear medicine diagnostic apparatus
First Claim
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1. A nuclear medicine diagnostic apparatus comprising:
- a detector configured to detect gamma rays emitted from a radioisotope in a patient;
a supporting member configured to support the detector such that the detector detects the gamma rays from at least three different three-dimensional detection directions;
a processor configured to reconstruct a tomographic image from projection data that corresponds to the detected gamma rays; and
a display configured to display the tomographic image.
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Abstract
A nuclear medicine diagnostic apparatus for detecting gamma rays emitted from a radioisotope (RI) administered to a subject, to generate images showing the functions of the subject, such as metabolism. In the nuclear medical diagnostic apparatus, a detector detects the gamma rays from at least three different three-dimensional detection directions and an image processor reconstructs images from the projection data by an iterative reconstruction method.
Therefore, the apparatus can collect data which is high in spatial resolution and low in absorption and scatter. Moreover, it can shorten the data collection time and reduce the burden on the subject patient.
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Citations
16 Claims
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1. A nuclear medicine diagnostic apparatus comprising:
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a detector configured to detect gamma rays emitted from a radioisotope in a patient;
a supporting member configured to support the detector such that the detector detects the gamma rays from at least three different three-dimensional detection directions;
a processor configured to reconstruct a tomographic image from projection data that corresponds to the detected gamma rays; and
a display configured to display the tomographic image. - View Dependent Claims (2, 3)
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4. A nuclear medicine diagnostic apparatus comprising:
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a plurality of detectors configured to detect gamma rays emitted from a radioisotope in a patient;
a supporting member configured to support the detectors such that the detectors detect the gamma rays from at least three different three-dimensional detection directions;
a processor configured to reconstruct a tomographic image from projection data that corresponds to the detected gamma rays; and
a display configured to display the tomographic image. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of generating an image by a nuclear medicine diagnostic apparatus comprising:
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detecting gamma rays emitted from a radioisotope in a patient by a detector;
setting the detector in a plurality of positions where the detector detects the gamma rays from at least three different three-dimensional detection directions;
reconstructing a tomographic image from projection data that corresponds to the detected gamma rays; and
displaying the tomographic image on a display. - View Dependent Claims (14, 15)
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16. A nuclear medicine diagnostic apparatus comprising:
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a detector configured to detect gamma rays emitted from a radioisotope in a patient;
a supporting member configured to support the detector such that the detector detects the gamma rays from at least three different three-dimensional detection directions;
a sensor configured to detect the position and direction of the detector;
a processor configured to reconstruct a tomographic image from projection data that corresponds to the detected gamma rays, the position of the detector and the direction of the detector by an iterative reconstruction method; and
a display configured to display the tomographic image.
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Specification