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Table 2 Analysis of the SIS ratio of bone SPECT/CT according to SI joint grade in plain radiography

From: The usefulness of bone SPECT/CT imaging with volume of interest analysis in early axial spondyloarthritis

  Grade 0 (n = 15) Grade 1 (n = 18) Grade 2 (n = 7) p-values
Bone SPECT/CT 1.54 ± 0.18 1.80 ± 0.31 1.81 ± 0.19 0.007*
Bone scintigraphy 1.00 ± 0.20 1.17 ± 0.18 1.17 ± 0.16 0.065
  1. SIS = sacroiliac joint to sacrum, SPECT/CT = single positron emission computed tomography/computed tomography; SI = sacroiliac.
  2. *Statistically significant group difference exists between grade 0 vs. grade 1 and grade 0 vs. grade 2 of plain radiography in post hoc analysis.