Skip to main content

Table 3 CT numbers of different grades of ELMSI on VNCa images based on MRI

From: Dual-energy CT virtual non-calcium: an accurate method for detection of knee osteoarthritis-related edema-like marrow signal intensity

BMLs grading

Reader 1

Reader 2

Mean CT numbers

Grade 1

− 88 ± 9 (− 105 to − 76)

− 93 ± 9 (− 110 to − 79)

− 90 ± 7 (− 103 to − 81)

Grade 2

− 56 ± 13 (− 82 to − 30)

− 60 ± 9 (− 80 to − 39)

− 58 ± 8 (− 74 to − 42)

Grade 3

− 33 ± 9 (− 49 to − 17)

− 32 ± 9 (− 45 to − 17)

− 32 ± 7 (− 43 to − 17)

Grade 4

− 18 ± 17 (− 55 to 20)

− 14 ± 17 (− 43 to 19)

− 14 ± 17 (− 40 to 4)

p value

< .001

< .001

< .001

  1. Data are expressed as mean CT numbers ± standard deviation, derived from dual-energy VNCa images
  2. Data in parentheses are the range
  3. p value was calculated with the two-sample t test. p < .05 indicates significant difference