Performance Characteristics of Long Axial Field-of-View PET Scanners With Axial Gaps

The introduction of long (>60 cm) axial field-of-view (LAFOV) PET systems has shown their potential for clinical and research applications. LAFOV scanners are expensive, so there is interest in designing systems with longer axial coverage while mitigating cost by introducing detector gaps. We used measurements on the PennPET Explorer (64-cm axial field-of-view (AFOV) prototype) and simulations of ...