TTR and AL amyloidosis: Takasone et al. [16] examined the value of combining PIB-PET imaging and [99mTc]-pyrophosphate scintigraphy in wild type ATTR (ATTRwt), early-onset V30M ATTRv, late-onset V30M ATTRv, non-V30M ATTRv and AL amyloidosis patients (n ATTR=30).