7th Conference on PET/MR and SPECT/MR

Session

Session 3 - Instrumentation: systems and detectors

21 May 2018, 15:30

La Biodola, Isola d'Elba

Conveners

Session 3 - Instrumentation: systems and detectors

• Sibylle Ziegler (Klinikum r. d. Isar / TUM / Dep. of Nuclear Medicine, Germany)

28. Initial results of a prototype brain PET system using a time-based digitizer and an FPGA-based real-time coincidence processor

Jeong-Whan Son (Seoul National University)

21/05/2018, 15:30

Talk

Our group is developing a brain-dedicated PET insert that will be combined with an ultra-high field (7T) MRI system. Herein, we present a prototype brain PET scanner with a diameter of 254 mm and an axial length of 26 mm consisting of two time-based digitizers and FPGA-based DAQ systems. The scanner was based on dual-layer depth-of-interaction (DOI) detectors with a relative offset by half a...

57. Current status of the PET detector developments of a dedicated PET/MRI for the diagnosis of breast cancer

Dr David Schug (RWTH Aachen University)

21/05/2018, 15:50

Talk

Current clinical simultaneous PET/MRI systems as well as PET/CT systems have been designed as whole-body systems. In both hybrid modalities, PET is limited in spatial resolution and sensitivity. In particular, the low spatial resolution of PET limits the ability to detect cancer at early stages and to monitor therapy responses, develop/apply radiomics and radiogenomics methods. To overcome...

51. The design of a wide-bore 1.5T MR body coil with integrated PET detectors

Casper Beijst (UMC Utrecht)

21/05/2018, 16:10

Talk

We envision a clinical workflow for the PET/MRI, in which PET/MRI is used for treatment planning and diagnostic workup for personalized cancer treatments using image-guided therapies (e.g. MR-guided radiotherapy, MR-LINAC). However, commercially available PET/MRIs have a small bore that is not suitable for scanning of patients in radiotherapy position (arms up). The aim of this study was to...

45. Performance characterization of MPPC modules for ToF-PET applications

Andrew Goertzen (University of Manitoba)

21/05/2018, 16:30

Talk

Current generations of PET detector designs feature arrays with large numbers of multi-pixel photon counters (MPPCs), also known as silicon photomultipliers (SiPMs), necessitating the use of data acquisition systems with either a high degree of signal multiplexing or using application specific integrated circuits (ASICs) to readout each pixel independently. In this work we evaluate the...

38. Timing resolution of linearly-graded silicon photomultipliers coupled to thin monolithic crystals

Arne Berneking (Bruker)

21/05/2018, 16:50

Talk

This work presents a new PET detector concept for compact preclinical hybrid simultaneous MR-PET. The detector concept is based on Linearly-Graded SiPM produced with FBK RGB-HD technology. One 7.75mm x 7.75mm large sensor chip is coupled with optical grease to a black coated 8mm x 8mm large and 3 mm thick monolithic LYSO crystal. The readout is obtained from four readout channels with linear...

71. RGB-HD SiPMs for fast readout of GAGG scintillation crystals in medical imaging

Alberto Mazzi (FBK - TIFPA)

21/05/2018, 17:10

Talk

In this work, we present the characterization of energy and coincidence time resolution of scintillation detectors obtained by the optical coupling of gadolinium-aluminum-gallium garnet (GAGG) crystals with RGB-HD silicon photomultipliers (SiPMs) with active area of 4×4 mm2 and cell pitch of 25 μm, developed at Fondazione Bruno Kessler (FBK). The emission spectrum of GAGG:Ce, peaked at 525 nm...