Title :
Geometric model of single scatter in PET
Author :
Kazantsev, Ivan G. ; Matej, Samuel ; Lewitt, Robert M.
Author_Institution :
Dept. of Comput. Sci., City Univ. of New York, NY
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
We present a mathematical model of single scatter in PET for a detector system possessing excellent energy resolution. Derivation of the model exploits assumptions widely used in PET and SPECT modalities for unscattered photons forward modeling. Integral equations describing a flux of photons emanating from the same annihilation event and undergoing a single scattering with a certain angle are derived in both 2D and 3D cases. Preliminary results of numerical experiments are presented.
Keywords :
integral equations; light scattering; positron emission tomography; radiation detection; single photon emission computed tomography; PET single scatter; SPECT; detector system; energy resolution; geometric model; integral equations; photon annihilation; unscattered photons forward modeling; Attenuation; Detectors; Electromagnetic scattering; Energy resolution; Integral equations; Mathematical model; Particle scattering; Positron emission tomography; Single photon emission computed tomography; Solid modeling;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.356446
