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Table 1 Agreement between MR-derived simulated radiographs and conventional radiographs and inter- and intraobserver agreement d

From: Evaluation of MR-derived simulated CT-like images and simulated radiographs compared to conventional radiography in patients with shoulder pain: a proof-of-concept study

 

Agreement between MR-derived simulated and conventional radiographs

Inter- and intraobserver agreement

Radiologist 1a

Radiologist 2a

MR-derived simulated radiographs

  

Interobserverb

Intraobserverc

Y-Projection:

Image quality

1.00 (1.00, 1.00)

0.90 (0.64, 1.00)

0.85 (0.61, 1.00)

0.77 (0.45, 1.00)

Detectability/visibility of the acromion

0.79 (0.43, 1.00)

0.81 (0.45, 1.00)

0.81 (0.53, 1.00)

0.72 (0.43, 1.00)

AHD

0.95 (0.83, 1.00)

0.60 (0.35, 0.80)

0.90 (0.74, 1.00)

0.85 (0.68, 1.00)

Acromion configuration

0.83 (0.60, 1.00)

0.67 (0.38, 0.91)

0.91 (0.73, 1.00)

0.74 (0.44, 1.00)

True AP-Projection:

Image quality

0.92 (0.74, 1.00)

0.60 (0.35, 0.91)

0.83 (0.61, 1.00)

0.77 (0.49, 1.00)

Detectability/visibility of the glenohumeral joint

0.78 (0.53, 1.00)

0.71 (0.44, 0.92)

0.85 (0.59, 1.00)

0.79 (0.52, 1.00)

Detectability/visibility of the acromion

0.92 (0.71, 1.00)

0.91 (0.67, 1.00)

0.92 (0.70, 1.00)

0.77 (0.49, 1.00)

Detectability/visibility of the glenoid

0.75 (0.47, 1.00)

0.65 (0.29, 0.91)

0.91 (0.69, 1.00)

0.76 (0.48, 1.00)

Detectability/visibility of the ac-joint

0.85 (0.61, 1.00)

0.65 (0.31, 0.91)

0.69 (0.44, 0.91)

0.78 (0.56, 1.00)

CSA

0.84 (0.64, 1.00)

0.69 (0.48, 0.86)

0.84 (0,64, 1.00)

0.84 (0.68, 1.00)

Degeneration by Samilson and Prieto

0.77 (0.39, 1.00)

0.77 (0.39, 1.00)

1.00 (1.00, 1.00)

0.55 (0.12, 0.89)

Certainty of imaging features

0.83 (0.59, 1.00)

1.00 (1.00, 1.00)

0.75 (0.47, 1.00)

0.70 (0.40, 0.92)

  1. aAgreement between MR-derived simulated radiographs and conventional radiographs calculated using Cohen κ coefficient
  2. bInter-observer agreement for MR-derived simulated radiograph and conventional radiograph analyses using the Cohen κ coefficient
  3. cIntra-observer agreement for MR-derived simulated radiograph and conventional radiograph analyses using the Fleiss κ
  4. *Evaluation using a 4- point Likert -scale