Mainz 2014 – scientific programme

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ST: Fachverband Strahlen- und Medizinphysik

ST 2: Biomedical Imaging I

ST 2.5: Talk

Tuesday, March 25, 2014, 15:00–15:15, RW 2

Grating-based helical-CT phase contrast imaging — •Max Schuster¹, Florian Bayer¹, Wilhelm Haas^1,2, Florian Horn¹, Manuel Kraus¹, Georg Pelzer¹, Jens Rieger¹, André Ritter¹, Andrea Zang¹, Thomas Weber¹, Thilo Michel¹, and Gisela Anton¹ — ¹ECAP - Erlangen Centre for Astroparticle Physics, Universität Erlangen-Nürnberg, Erwin- Rommel-Straße 1, 91058 Erlangen — ²Lehrstuhl für Mustererkennung, Universität Erlangen-Nürnberg, Martensstraße 3, 91058 Erlangen

Tomographic imaging is far established in the field of grating based Talbot-Lau X-ray interferometry. In this contribution we present results of helical phase-contrast CT. Helical-CT scans of phantoms and mice were performed with a 25 keV design energy Talbot-Lau interferometer operated with a 40 kVp tungsten anode spectrum. 360LI and 360MLI interpolation algorithms have been tested. Slice reconstruction was carried out for attenuation, differential phase and dark-field signals.