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Detective quantum efficiency (DQE) of an imaging system is an indicator of the image quality metrics of the system taking into consideration detector efficiency.To investigate a measurement method for evaluating the DQE of a PET imaging system across reconstruction algorithms.A novel and highly homogeneous, high – activity flood source was prepared, placed between two semi cylindrical PMMA blocks...
We propose an efficient, deterministic algorithm designed to reconstruct images from real Radon-transform and attenuated Radon-transform data. Its input consists in a small family of recorded signals, each sampling the same composite photon or positron emission scene over a non-Gaussian, noisy channel. The reconstruction is performed by combining a novel numerical implementation of an analytical inversion...
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