Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1986-04-10
1987-09-08
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250369, G01T 1164
Patent
active
046926240
ABSTRACT:
An emission computed tomography apparatus in which a radiation detector is moved along an elliptical orbit about a subject under examination. The effective field of view of the radiation detector is reduced depending on the position of the detector. The reduction of the field of view produces a false image in a reconstructed image and reduces spatial resolution. To prevent this, part of image data, collected by the detector at a first position, for part of the subject from which radiation cannot be detected due to the reduced effective field of view, is interpolated with part of image data, collected by the detector at a second position, for the part of the subject from which radiation cannot be detected at the first position. The first and second positions are opposite to each other with the subject interposed therebetween.
REFERENCES:
patent: 3970853 (1976-07-01), Kuhl et al.
patent: 4434369 (1984-02-01), Metal
Gottschalk et al., "SPECT Resolution and Uniformity Improvements by Noncircular Orbit," Journal of Nuclear Medicine, vol. 24, No. 9, pp. 822-828, Sep. 1983.
Patent Abstracts of Japan, vol. 7, No. 32 (P-174) [1177], Feb. 8, 1983; & JP-A-57 184 988 (Tokyo Shibaura Denki K.K.) Nov. 13, 1982.
Fields Carolyn E.
Kabushiki Kaisha Toshiba
LandOfFree
Emission computed tomography apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Emission computed tomography apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emission computed tomography apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2159940