Impact of the maximum ring difference on image quality and noise characteristics of a total-body PET/CT scanner

F.P. Schmidt,J.G. Mannheim,P.M. Linder,P. Will,L.S. Kiefer,M. Conti,C. la Fougère,I. Rausch

Nuklearmedizin-nuclear Medicine（2023）

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摘要

The sensitivity of a PET system highly depends on the axial acceptance angle or maximum ring difference (MRD), which can be particularly high for total-body scanners due to their larger axial field of views (aFOVs). This study aims to evaluate the impact on image quality (IQ) and noise performance when MRD85 (18°), the current standard for clinical use, is increased to MRD322 (52°) for the Biograph Vision Quadra (Siemens Healthineers).

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关键词

Total body PET,Long field of view,Biograph Vision Quadra,Image quality,Acceptance angle

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