Abstract
The Modulation Transfer Function (MTF) is an important parameter for the characterization of image quality and the signal transfer properties of an imaging system. To develop a new method for MTF determination of PET/CT in three dimensions (3D), a novel and highly uniform, film based flood source using 18F-FDG has been prepared. The source was placed between PMMA blocks of various thicknesses, and imaged in a GE Discovery-ST, PET/CT system. MTF was then calculated from the line spread function (LSF) profile of the film. The film was prepared by immersing silica gel matrix, Al foils (5×10cm Fluka) in 18F-FDG bath solution. The effects of different reconstruction algorithms and the shape of the scanned object on MTF were investigated. The coincidence in the fused PET and CT image was investigated as well. © 2009 Springer-Verlag.
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Samartzis, A., Fountos, G., Kalatzis, I., Michail, C., Zanglis, A., Cavouras, D., … Nikiforidis, G. (2009). A novel method for the MTF determination in PET/CT scanners. In IFMBE Proceedings (Vol. 25, pp. 841–844). Springer Verlag. https://doi.org/10.1007/978-3-642-03879-2_234
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