SPECT apparatus
AssigneeFujita Educational Institution
InventorsNobutoku Motomura, Hisato Maeda
Life of this patent
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Abstract
A SPECT apparatus has a two-dimensional detector that detects radiations from RIs in a patient via a collimator. A correction processing unit corrects plural two-dimensional projection distributions with different projection angles, which are detected by the detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances, respectively. Consequently, a fall in spatial resolution having dependency on distances between the respective RIs and the detector is reduced. A reconfiguring unit reconfigures a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
Claims16
A SPECT apparatus comprising:
- a two-dimensional detector that detects radiations from RIs in a patient via a collimator;
- a correction processing unit that corrects, in order to reduce a fall in spatial resolution having dependency on distances between the respective RIs and the detector, plural two-dimensional projection distributions with different projection angles, which are detected by the detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances, respectively;
- and
- a reconfiguring unit that reconfigures a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
A processing method for a SPECT, comprising:
- correcting plural two-dimensional projection distributions with different projection angles concerning RIs in a patient, which are detected by a two-dimensional detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances between the RIs and the detector, respectively;
- and
- reconfiguring a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
A program for SPECT processing for causing a computer to realize:
- means for correcting plural two-dimensional projection distributions with different projection angles concerning RIs in a patient, which are detected by a two-dimensional detector, on a three-dimensional frequency space according to plural correction functions corresponding to plural distances between the RIs and the detector, respectively;
- and
- means for reconfiguring a three-dimensional RI distribution from the plural two-dimensional projection distributions corrected.
Dependencies are inferred from the claim text.