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. 2011 Jun 23;2011:693795. doi: 10.1155/2011/693795

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Copyright © 2011 M. Lyra and A. Ploussi.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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3D liver surface images. (a) Liver and spleen fragment caused by accident. Images reconstructed by FBP, prefiltered by Hanning (critical value 0.8 cm⁻¹) and ramp filter. (b) Haemangioma of liver. Images reconstructed by FBP, prefiltered by Butterworth (cut off 0.5 cm⁻¹, power factor = 10) and ramp filter. (Studies offered by Radiation Physics Unit, Department of Radiology, University of Athens).