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Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Correlation between structural changes and ASDAS

From: The value of chemical shift imaging and T1-Dixon MRI in evaluation of structural changes in sacroiliac joint in ankylosing spondylitis

 

Cases (N = 40)

r

P value

ASDAS versus erosions/backfill by MRI TI

0.68

0.0001*

ASDAS versus erosions/backfill by MRI Dixon

0.69

0.0001*

ASDAS versus maximal fat depth by TI

0.26

0.101

ASDAS versus maximal fat depth by Dixon

0.32

0.044*

ASDAS versus complaint duration

0.29

0.070

ASDAS versus age

0.01

0.949

  1. *Correlation is significant at the 0.05 level (2-tailed)
  2. r = 0–0.2: very low and probably meaningless
  3. r = 0.2–0.4: a low correlation that might warrant further investigation
  4. r = 0.4–0.6: a reasonable correlation
  5. r = 0.6–0.8: a high correlation
  6. r = 0.8–1.0: a very high correlation
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