RecruitingDiagnostic test18F-mFBG LAFOV PET/CT Compared to 123I-mIBG Scintigraphy SPECT/CT for Evaluation of Children With NeuroblastomaThis is a study evaluating the positron-emitting radiopharmaceutical 18F-mFBG compared to 123I-mIBG scintigraphy for imaging of neuroblastoma