Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Reexamination Certificate
2006-06-06
2006-06-06
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
Reexamination Certificate
active
07057178
ABSTRACT:
Methods and systems for imaging by using a filter for Time-Of-Flight Positron Emission Tomography (TOF PET) are described. The described methods of imaging a patient by using a positron emission tomography (PET) system includes acquiring a plurality of frames of sinogram data, filtering the acquired sinogram data and back-projecting the filtered sinogram data to form an output image of the patient. The acquired sinogram data defines a line of response (LOR) and a time-of-flight (TOF) measurement that localizes positron annihilation within the patient. The filtering of the acquired sinogram data is performed using the TOF measurement.
REFERENCES:
patent: 5272343 (1993-12-01), Stearns
Mallon et al., Three-dimensional PET reconstruction with time-of-flight measurement, 1992, Phys. Med. Biol., vol. 37, No. 3, 717-729.
Snyder et al., A Mathematical Model For Positron-Emission Tomography Systems Having Time-Of-Flight Measurements, Jun. 1981, IEEE Transactions on Nuclear Science, vol. NS-28, No. 3, 3575-3583.
Politte, D.G., Image Improvements in Positron-Emission Tomography due to measuring differential time-of-flight and using maximum likelihood estimation, IEEE Transactions on Nuclear Science, Apr. 1990, 737-742, vol. 37, No. 2.
Snyder, Donald L. et al, A mathematical model for Positron-Emission Tomography systems having time-of-flight measurements, IEEE Transactions on Nuclear Science, Jun. 1981, vol. NS-28,No. 3.
Manjeshwar Ravindra Mohan
Stearns Charles William
General Electric Company
Porta David
Small Dean D.
Taningco Marcus
The Small Patent Law Group
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