Fig. 3

 A representative case with different visual scores in the DPD and PYP scans. (a) In the DPD scan, both Perugini and Dorbala scores of the case patient were 0. (b) Perugini and Dorbala scores were higher in the PYP scan than the DPD scan, and the Dorbala score (Score 2) was higher than the Perugini score (Score 1)

Abbreviations: DPD, technetium-99 m 3,3-diphosphono-1,2-propanodicarboxylic acid; PYP, technetium-99 m pyrophosphate