Fast SPECT simulation including object shape dependent scatter. - Freek J. Beekman; Max A. Viergever (IEEE Trans. Medical Imaging, 1995)

Improved SPECT quantitation using fully three-dimensional iterative spatially variant scatter response compensation. - Freek J. Beekman; Chris Kamphuis; Max A. Viergever (IEEE Trans. Medical Imaging, 1996)

Supervised Diffusion Parameter Selection for Filtering SPECT Brain Images. - Freek J. Beekman; Ed T. P. Slijpen; Wiro J. Niessen (Scale-Space, 1997)

Accelerated Iterative Transmission CT Reconstruction using an Ordered Subsets Convex Algorithm. - Chris Kamphuis; Freek J. Beekman (IEEE Trans. Medical Imaging, 1998)

Efficient Fully 3D Iterative SPECT Reconstruction with Monte Carlo Based Scatter Compensation. - Freek J. Beekman; Hugo W. A. M. de Jong; Sander van Geloven (IEEE Trans. Medical Imaging, 2002)

Accelerated simulation of cone beam X-ray scatter projections. - Auke-Pieter Colijn; Freek J. Beekman (IEEE Trans. Medical Imaging, 2004)

Efficient Monte Carlo Based Scatter Artifact Reduction in Cone-Beam Micro-CT. - Wojciech Zbijewski; Freek J. Beekman (IEEE Trans. Medical Imaging, 2006)

Imaging dynamics of organs and drugs at sub-half-mm and sub-minute resolution using focusing pinhole SPECT. - Freek J. Beekman; Frans van der Have; Brendan Vastenhouw; Woutjan J. Branderhorst; Annemarie van der Linden; Marten P. Smidt (ISBI, 2008)

Guest Editorial Fully 3-D Reconstruction of Medical Images. - Freek J. Beekman; Marc Kachelrieß (IEEE Trans. Medical Imaging, 2008)

System Calibration and Statistical Image Reconstruction for Ultra-High Resolution Stationary Pinhole SPECT. - Frans van der Have; Brendan Vastenhouw; Marc Rentmeester; Freek J. Beekman (IEEE Trans. Medical Imaging, 2008)

Atlas-driven scan planning for high-resolution micro-SPECT data acquisition based on multi-view photographs: a pilot study. - Martin Baiker; Brendan Vastenhouw; Woutjan J. Branderhorst; Johan H. C. Reiber; Freek J. Beekman; Boudewijn P. F. Lelieveldt (Image-Guided Procedures, 2009)

Accurate Coregistration between Ultra-High-Resolution Micro-SPECT and Circular Cone-Beam Micro-CT Scanners. - Changguo Ji; Frans van der Have; Hugo A. F. Gratama van Andel; Ruud Ramakers; Freek J. Beekman (Int. J. Biomed. Imaging, 2010)

Fast Count-Regulated OSEM Reconstruction With Adaptive Resolution Recovery. - Pieter E. B. Vaissier; Marlies C. Goorden; Aaron B. Taylor; Freek J. Beekman (IEEE Trans. Medical Imaging, 2013)