TY - JOUR AU - Oddstig, Jenny AU - Brolin, Gustav AU - Trägårdh, Elin AU - Minarik, David PY - 2021 DA - 2021/02/25 TI - Head-to-head comparison of a Si-photomultiplier-based and a conventional photomultiplier-based PET-CT system JO - EJNMMI Physics SP - 19 VL - 8 IS - 1 AB - A novel generation of PET scanners based on silicon (Si)-photomultiplier (PM) technology has recently been introduced. Concurrently, there has been development of new reconstruction methods aimed at increasing the detectability of small lesions without increasing image noise. The combination of new detector technologies and new reconstruction algorithms has been found to increase image quality. However, it is unknown to what extent the demonstrated improvement of image quality is due to scanner hardware development or improved reconstruction algorithms. To isolate the contribution of the hardware, this study aimed to compare the ability to detect small hotspots in phantoms using the latest generation SiPM-based PET/CT scanner (GE Discovery MI) relative to conventional PM-based PET/CT scanner (GE Discovery 690), using identical reconstruction protocols. SN - 2197-7364 UR - https://doi.org/10.1186/s40658-021-00366-7 DO - 10.1186/s40658-021-00366-7 ID - Oddstig2021 ER -