Figure 2From: The usefulness of bone SPECT/CT imaging with volume of interest analysis in early axial spondyloarthritisComparison of SIS ratio between early axial SpA and control subjects. A significant difference of SIS ratio was found in early axial SpA patients compared with control subjects by bone SPECT/CT (1.68 ± 0.29 vs. 1.43 ± 0.14, respectively; p < 0.001). However, no significant difference was detected by bone scintigraphy (1.10 ± 0.21 vs. 1.12 ±0.17, respectively; p = 0.916).Back to article page