Which imaging modalities and schedule do you use to follow stage I-II follicular lymphoma that was treated with radiotherapy alone?

PET has been demonstrated to be more sensitive and specific in staging for FL as well as a strong independent predictor of outcome after treatment. Patients also have ~50% risk of developing recurrence outside the RT volume - and PET allows for whole-body imaging. PET is therefore the imaging modality I use/recommend to follow patients after treatment with RT for localized disease (~6-8 weeks following RT and then as indicated thereafter). As well, recurrence with strongly avid findings can be a...