Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-05-02
2006-05-02
Patel, Kanjibhai (Department: 2625)
Image analysis
Applications
Biomedical applications
C250S363030
Reexamination Certificate
active
07039227
ABSTRACT:
A PET apparatus is provided, which ensures excellent quantitativeness by properly correcting the influence of scattered radiation while improving the resolution of a reconstructed image and keeping good photon pair detection sensitivity. A determining section52determines whether a straight line connecting the light-receiving surfaces15bof a pair of photon detectors15awhich have simultaneously detected a photon pair crosses any one of slice collimators21n. When it is determined that the straight line crosses none of the slice collimators21n, the corresponding coincidence counting information is accumulated by a first coincidence counting information storage section53to generate a signal sinogram. When it is determined that the straight line crosses one of the slice collimators21n, the corresponding coincidence counting information is accumulated by a second coincidence counting information storage section54to generate a scatter sinogram. An image reconstructing section60corrects the influence of scattered components on the signal sinogram on the basis of the scattered sinogram, and reconstructs an image on the basis of the corrected signal sinogram.
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Tanaka Eiichi
Yamashita Takaji
Drinker Biddle & Reath LLP
Hamamatsu Photonics K.K.
Mistry O'Neal R.
Patel Kanjibhai
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