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Würzburg 2018 – scientific programme

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ST: Fachverband Strahlen- und Medizinphysik

ST 5: Biomedical Imaging II

ST 5.8: Talk

Wednesday, March 21, 2018, 18:30–18:45, Phys-HS P

Commissioning of an Assembly Tool for High Resolution, DOI-Capable PET Detectors — •Federica Demattè1, Thomas Dey1, Pierre Gebhardt1, Nicolas Groß-Weege1, Patrick Hallen1, Florian Müller1, David Schug1, Björn Weißler1, Laiyin Yin1, and Volkmar Schulz1,21Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany — 2Department of Molecular Imaging Systems, Philips Research, Aachen, Germany

Positron Emission Tomography (PET) allows to analyze metabolic information in vivo. The two 511 keV gamma particles originating from the positron annihilation location are detected by scintillator based detectors. To attenuate the 511 keV gammas typically a thickness of 10 - 20 mm is used. The scintillator is often structured to confine the scintillation light to a bin size that suits the targeted spatial resolution. If the last one is smaller than the height of the scintillator, it is beneficial to be able to determine the Dept-Of-Interaction (DOI) of the gamma interaction.

The European project "HYPMED" aims to develop a PET/MRI which can diagnose even the smallest cancer foci in women breast. The targeted spatial resolution is sub-millimeter, outperforming any state-of-the-art whole-body PET.

This talk will introduce the developments of the assembly tool used to mount high-resolution, DOI-capable detector stacks. Some first performance evaluation results will be presented as well.

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