Open-source FDK is fast and competitive for high-contrast tasks while ASTRA SIRT at 5x the time delivers the best low-contrast detectability; vendor software leads in resolution but fails the Rose criterion for 100 HU objects.
Radiation dose and image-quality assessment in computed tomography.Journal of the ICRU, 12(1)
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Systematic evaluation of 16 FDK filter configurations on a GE eXplore CT 120 scanner produces MTF10 values from 0.93 to 2.35 lp/mm, integrated NPS from 75,670 to 13,259 HU², and Rose-criterion detectable diameters from 0.93 to 7.74 mm depending on contrast.
citing papers explorer
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Benchmarking Open-Source FDK Against Commercial and Iterative Reconstruction Methods for Preclinical Micro-CBCT
Open-source FDK is fast and competitive for high-contrast tasks while ASTRA SIRT at 5x the time delivers the best low-contrast detectability; vendor software leads in resolution but fails the Rose criterion for 100 HU objects.
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Resolution-Noise Characteristics of Common FDK Filter Kernels: A Practical Reference for Preclinical Cone-Beam Micro-CT
Systematic evaluation of 16 FDK filter configurations on a GE eXplore CT 120 scanner produces MTF10 values from 0.93 to 2.35 lp/mm, integrated NPS from 75,670 to 13,259 HU², and Rose-criterion detectable diameters from 0.93 to 7.74 mm depending on contrast.