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. 2019 May 14;21:119. doi: 10.1186/s13075-019-1903-1

Fig. 1.

Fig. 1

Methodology of the semi-quantitative evaluation of the SIJ using for quadrants, based on the SPARCC MRI SIJ inflammation score on the cartilaginous part of the SIJ (a). Application on PET/CT (b), CT scan (c), and MRI (d)