Modeling of Pixelated Detector in SPECT Pinhole Reconstruction
نویسندگان
چکیده
منابع مشابه
Fast iterative reconstruction for helical pinhole SPECT imaging.
Pinhole SPECT for small animal has become a routine procedure in many applications of molecular biology and pharmaceutical development. There is an increasing demand in the whole body imaging of lab animals. A simple and direct solution is to scan the object along a helical trajectory, similar to a helical CT scan. The corresponding acquisition time can be greatly reduced, while the over-lappin...
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BACKGROUND Monte Carlo simulations provide accurate models of nuclear medicine imaging systems as they can properly account for the full physics of photon transport. The accuracy of the model included in the maximum-likelihood-expectation-maximization (ML-EM) reconstruction limits the overall accuracy of the reconstruction results. In this paper, we present a Monte Carlo-based ML-EM reconstruct...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 2014
ISSN: 0018-9499,1558-1578
DOI: 10.1109/tns.2014.2304887