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Table 6 Results of intra-rater and inter-rater reliability assessment

From: Quantitative analysis of the ACL and PCL using T1rho and T2 relaxation time mapping: an exploratory, cross-sectional comparison between OA and healthy control knees

Intra-rater reliability

T1rho

T2

ACL (95% CI)

PCL (95% CI)

ACL (95% CI)

PCL (95% CI)

Overall

0.94 (0.86, 0.98)

0.78 (0.53, 0.91)

0.92 (0.81, 0.97)

0.84 (0.65, 0.93)

Distal

0.58 (0.21, 0.81)

0.68 (0.36, 0.86)

0.61 (0.24, 0.82)

0.81 (0.58, 0.92)

Middle

0.83 (0.62, 0.93)

0.79 (0.54, 0.91)

0.80 (0.57, 0.92)

0.77 (0.51, 0.9)

Proximal

0.89 (0.74, 0.96)

0.75 (0.47, 0.89)

0.92 (0.77. 0.97)

0.68 (0.35, 0.86)

Inter-rater reliability

T1rho

T2

ACL

PCL

ACL

PCL

Overall

0.91 (0.66, 0.97)

0.76 (0.46, 0.91)

0.84 (0.61, 0.94)

0.84 (0.62, 0.94)

Distal

0.33 (−0.92, 0.68)

0.2 (−0.35, 0.63)

0.5 (0.04, 0.78)

0.78 (0.48, 0.91)

Middle

0.83 (0.56, 0.94)

0.75 (0.39, 0.91)

0.83 (0.59, 0.94)

0.86 (0.66, 0.95)

Proximal

0.87 (0.68, 0.95)

0.79 (0.5, 0.92)

0.73 (0.39, 0.89)

0.31 (−0.18, 0.68)

  1. NOTE: Overall = The inter/intra-rater reliability across the whole of the ligament. ACL Anterior cruciate ligament, CI Confidence interval, PCL Posterior cruciate ligament
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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