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Poster — Wed Eve—15: Development of Multiple Coincidence Compton Imager
Author(s) -
Andreyev A,
Sitek A,
Celler A
Publication year - 2009
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.3244119
Subject(s) - collimated light , coincidence , sensitivity (control systems) , image resolution , optics , physics , detector , resolution (logic) , compton scattering , iterative reconstruction , photon , computer science , artificial intelligence , laser , electronic engineering , medicine , alternative medicine , pathology , engineering
We report on the development of a new type of nuclear medicine imaging device — a Multiple Coincidence Compton Imager (MCCI). MCCI is based on the principle of electronic collimation and is expected to provide comparable resolution and better sensitivity than currently available SPECT systems. Furthermore, MCCI is using the simultaneous acquisition of several photons from a cascade allowing improved localization of the origin of any single radioactive disintegration. We have developed data simulation software and a simplified image reconstruction algorithm, that can be used to make predictions about the sensitivity and the reconstructed image spatial resolution that will be achieved by the MCCI system. In particular, our simulations of a small animal systems, using Silicon and CZT detector combination confirmed that the Compton camera is able to provide 10 to 100 times higher sensitivity than a typical SPECT system and image resolution around 1 mm FWHM for small animal studies.