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The multi‐module, multi‐resolution system ( M 3 R ) : A novel small‐animal SPECT system
Author(s) -
Hesterman Jacob Y.,
Kupinski Matthew A.,
Furenlid Lars R.,
Wilson Donald W.,
Barrett Harrison H.
Publication year - 2007
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 - 10.1118/1.2432071
Subject(s) - pinhole (optics) , computer science , calibration , flexibility (engineering) , image resolution , detector , systems design , resolution (logic) , iterative reconstruction , tomographic reconstruction , electromagnetic shielding , artificial intelligence , computer vision , optics , engineering , physics , electrical engineering , statistics , mathematics , software engineering , quantum mechanics , telecommunications
We have designed and built an inexpensive, high‐resolution, tomographic imaging system, dubbed the multi‐module, multi‐resolution system, orM 3 R . Slots machined into the system shielding allow for the interchange of pinhole plates, enabling the system to operate over a wide range of magnifications and with virtually any desired pinhole configuration. The flexibility of the system allows system optimization for specific imaging tasks and also allows for modifications necessary due to improved detectors, electronics, and knowledge of system construction (e.g., system sensitivity optimization). We provide an overview ofM 3 R , focusing primarily on system design and construction, aperture construction, and calibration methods. Reconstruction algorithms will be described and reconstructed images presented.