SPECT apparatus

Details SPECT apparatus SPECT apparatus

2005-10-06

2008-09-02

Berman, Jack I. (Department: 2881)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C250S369000, C250S363090, C250S252100

Reexamination Certificate

active

07420176

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.

REFERENCES:
patent: 7323689 (2008-01-01), Hawman
patent: 2002/0130265 (2002-09-01), Zerg et al.
patent: 2006/0065837 (2006-03-01), Hawman
patent: 2006/0091315 (2006-05-01), Hawman
patent: 2007/0217666 (2007-09-01), Gal et al.
patent: 2008/0042067 (2008-02-01), Rousso et al.
patent: 2008/0087833 (2008-04-01), McCroskey et al.
Paul R. Edholm, et al., “Novel Properties of the Fourier Decomposition of the sinogram”, Physics and Engineering of Computerized multidimensional Imaging and Processing, SPIE, vol. 671, 1986, pp. 8-18.

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