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Fig. 1 | EJNMMI Research

Fig. 1

From: Diagnostic performance of the specific uptake size index for semi-quantitative analysis of I-123-FP-CIT SPECT: harmonized multi-center research setting versus typical clinical single-camera setting

Fig. 1

Anatomical caudate and putamen ROIs from the AAL atlas (a), custom-made anatomical ROIs of anterior and posterior putamen (b), large ROIs of caudate and putamen (c), and reference region (d). All ROIs are three-dimensional. The ROIs are overlaid to the custom-made FP-CIT template used as target for stereotactical normalization. The anatomical ROIs in (a) and (b) were used for computation of the SBR. The large ROIs in (c) were used for computation of the SUSI. The custom-made FP-CIT template was obtained by averaging the stereotactically normalized images of 94 visually normal FP-CIT SPECT scans

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