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Fig. 2 | EJNMMI Physics

Fig. 2

From: Impact of the size of the normal database on the performance of the specific binding ratio in dopamine transporter SPECT

Fig. 2

Box-and-whisker-plot of putamen SBR in healthy control (HC) subjects versus patients with Parkinson’s disease (PD) of the PPMI (a) and patients with non-neurodegenerative PS versus patients with neurodegenerative PS of the clinical sample (b) for different ROI methods to estimate the putamen SBR (conventional analysis with AAL ROI versus hottest voxels (HV) analysis). Different algorithms to reconstruct the SPECT images (iterative ordered subsets expectation maximization (OSEM) reconstruction with resolution recovery (RR) versus filtered backprojection (FBP)) were tested in the clinical sample only

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