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ST: Fachverband Strahlen- und Medizinphysik

ST 4: Biomedical Imaging I

ST 4.8: Vortrag

Mittwoch, 29. März 2017, 18:35–18:50, JUR 1

Applications of Dual Energy Phase Contrast X-ray Imaging — •Theresa Palm¹, Florian Horn¹, Sebastian Käppler², Wencke Losensky³, Veronika Ludwig¹, Thilo Michel¹, Georg Pelzer¹, Jens Rieger¹, Bernd Wullich³, 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 — ³Universitätsklinikum Erlangen, Urologische Klinik, Krankenhausstraße 12, 91054 Erlangen

Grating-based x-ray phase-contrast Talbot-Lau interferometry allows to measure a material’s phase and its absorption coefficient simultaneously. In conventional x-ray imaging, Dual Energy methods are used to calculate body fat percentages or bone densities. Combining the Dual Energy approach with phase contrast and computed tomography, a more sophisticated investigation of materials in an object is envisaged. This could possibly make the aforementioned applications more accurate. Measurements with different x-ray spectra were conducted on phantom objects and biological samples. Measurements on human renal calculi were conducted in order to characterise various mineral compositions. This information could facilitate a decision on the destruction method of the stones prior to surgery.
Acknowledgement: We would like to acknowledge financial and technical support of this work by Siemens Healthcare GmbH