Simulation of a Quality Control Jaszczak Phantom with SIMIND Monte Carlo and Adding the Phantom as an Accessory to the Program

Introduction: quality control is an important phenomenon in nuclear medicine imaging. a jaszczak spect phantomprovides consistent performance information for any spect or pet system. this article describes thesimulation of a jaszczak phantom and creating an executable phantom file for comparing assessment ofspect cameras using simind monte carlo simulation program which is well-established for spect.materials and methods: the simulation was based on a deluxe model of jaszczak phantom with defined geometry. quality controltests were provided together with initial imaging example and suggested use for the assessment ofparameters such as spatial resolution, limits of lesion detection, and contrast comparing with a siemense.cam spect system.results: the phantom simulation was verified by matching tomographic spatial resolution, image contrast, and alsouniformity compared with the experiment spect of the phantom from filtered backprojection reconstructedimages of the spheres and rods. the calculated contrasts of the rods were 0.774, 0.627, 0.575, 0.372, 0.191,and 0.132 for an experiment with the rods diameters of 31.8, 25.4, 19.1, 15.9, 12.7, and 9.5 mm,respectively. the calculated contrasts of simulated rods were 0.661, 0.527, 0.487, 0.400, 0.23, and 0.2 forcold rods and also 0.92, 0.91, 0.88, 0.81, 0.76, and 0.56 for hot rods. reconstructed spatial tomographicresolution of both experiment and simulated spects of the phantom obtained about 9.5 mm. an executablephantom file and an input phantom file were created for the simind monte carlo program.conclusion: this phantom may be used for simulated spect systems and would be ideal for verification of the simulatedsystems with real ones by comparing the results of quality control and image evaluation. it is also envisagedthat this phantom could be used with a range of radionuclide doses in simulation situations such as cold, hot,and background uptakes for the assessment of detection characteristics when a new similar clinical spectprocedure is being simulated