Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Reexamination Certificate
2006-03-21
2006-03-21
Gabor, Otilia (Department: 2878)
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
C250S363010, C378S004000
Reexamination Certificate
active
07015476
ABSTRACT:
A single photon emission computed tomography system produces multiple tomographic images of the type representing a three-dimensional distribution of a photon-emitting radioisotope. The system has a base including a patient support for supporting a patient such that a portion of the patient is located in a field of view. A longitudinal axis is defined through the field of view. A detector module is adjacent the field of view and includes a photon-responsive detector. The detector is operable to detect if a photon strikes the detector. A photon-blocking member is positioned between the field of view and the detector. The blocking member has an aperture slot for passage of photons aligned with the aperture slot. A line of response is defined from the detector through the aperture. A collimating assembly includes a plurality of generally parallel collimating vanes formed of a photon attenuating material. The vanes are spaced apart so as to find a plurality of gaps, with the gaps each having a height. Each of the vanes has a front edge directed toward the field of view and a back edge directed towards the detector. The front-to-back depth of each of the vanes is greater than 10 times the height of the gaps. The plurality of vanes is disposed between the detector and the field of view such that only photons passing through one of the gaps can travel from the field of view to the detector. A displacement device moves either the detector module or the photon-blocking member relative to the other so that the aperture is displaced relative to the detector and the line of response is swept across at least a portion of the field of view.
REFERENCES:
patent: 4090080 (1978-05-01), Tosswill
patent: 4584478 (1986-04-01), Genna et al.
patent: 4821304 (1989-04-01), Danos
patent: 4937453 (1990-06-01), Nelson
patent: 5021667 (1991-06-01), Genna et al.
patent: 5032728 (1991-07-01), Chang et al.
patent: 5600144 (1997-02-01), Worstell
patent: 5600145 (1997-02-01), Plummer
patent: 5608221 (1997-03-01), Bertelsen et al.
patent: 5821541 (1998-10-01), Tumer
patent: 5825031 (1998-10-01), Wong et al.
patent: 5838009 (1998-11-01), Plummer et al.
patent: 5841140 (1998-11-01), McCroskey et al.
patent: 6147352 (2000-11-01), Ashburn
patent: 6252938 (2001-06-01), Tang
patent: 6359279 (2002-03-01), Gagnon et al.
patent: 6552349 (2003-04-01), Gagnon et al.
patent: 6670614 (2003-12-01), Plut et al.
patent: 2003/0026386 (2003-02-01), Tang et al.
patent: 2003/0128813 (2003-07-01), Appleby et al.
patent: 2003/0235272 (2003-12-01), Appleby et al.
patent: 2004/0156478 (2004-08-01), Appleby et al.
patent: 0 289 737 (1988-11-01), None
IEEE Transactions on Nuclear Science, vol. 40, No. 4, Aug. 1993 entitled Ultra-High-Resolution Brain Spect Imaging: Simulation Results by M.M. Rogulski, H.B. Barber, H.H. Barrett, R.L. Shoemaker and J.M. Woolfenden—University of Arizona, Tucson, AZ 85724.
Performance Evaluation of Sprint, A Single Photon Ring Tomograph for Brain Imaging by W. Leslie Rogers, Neal H. Clinthorne, John Stamos, Kenneth F. Koral, Robert Mayans, Glenn F. Knoll, Jack Juni, John W. Keyes, Jr., and Beth A. Harkness.
IEEE Transactions on Medical Imaging, vol. MI-1, No. 1, Jul. 1982 entitled A Stationary Detector Single Photon Ring Tomograph for Brain Imaging by W.L. Rogers, N.H. Clinthorne, J. Stamos, K.F. Koral, R. Mayans, J.W. Keyes, Jr., J.J. Williams, W.P. Snapp, and G.F. Knoll.
IEEE Transactions on Medical Imaging, vol. 7, No. 4 Dec. 1988 entitled Sprint II: A Second Generation Single Photon Ring Tomograph by W.L. Rogers, N.H. Clinthorne, L. Shao, P. Chiao, Y. Ding, J.A. Stamos, and K.F. Koral.
IEEE Transactions on Nuclear Science, vol. NS-26, No. 1, Feb. 1979 entitled Introducing Sprint: A Single Photon Ring System for Emission Tomography by J.J. Williams, W.P. Snapp, G.F. Knoll.
Gabor Otilia
Gifford,Krass,Groh,Sprinkle,Anderson & Citkowski, PC
LandOfFree
Single photon emission computed tomography system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single photon emission computed tomography system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single photon emission computed tomography system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3572985