Publications (3)0 Total impact
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Article: Effect of scatter coincidences, partial volume, positron range and non-colinearity on the quantification of FDOPA Patlak analysis
Iranian Journal of Nuclear Medicine 01/2012; 20(1):11-18. -
Conference Proceeding: Scatter simulation including double scatter
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ABSTRACT: We propose and evaluate a new scatter simulation algorithm to correct for scattered events in 3D PET. The algorithm simulates both single and double scatter. We show that single and double scatter distribution can have different shapes. This may cause difficulties if the total scatter is estimated by scaling the single scatter contribution. The whole implementation is based on the STIR library (software for tomographic image reconstruction)Nuclear Science Symposium Conference Record, 2005 IEEE; 11/2005 -
Conference Proceeding: Evaluation of the single scatter simulation algorithm implemented in the STIR library
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ABSTRACT: The model-based single scatter simulation (SSS) algorithm has been implemented in the Open Source software library called STIR (Software for Tomographic Image Reconstruction). The main advantage of the SSS algorithm is its good accuracy at small computational time. The aim of the current work is to validate our implementation and to investigate the influence of several parameters. The validation tests are based on the NEMA-NU 2001 standard about scatter accuracy. The results of our implementation are compared both with data from the SimSET Monte Carlo simulation package and with measured data. The flexibility of our code can help us to understand the influence of many parameters of the algorithm, such that optimal values can be found for given time constraints, as for example are the detector sampling and the voxel size of the transmission image. This implementation will be included in future distributions of STIR.Nuclear Science Symposium Conference Record, 2004 IEEE; 11/2004
