Skip to main content

Table 4 Intra-observer and inter-observer reliability and agreement

From: Reference range of fetal thorax using two-dimensional and three-dimensional ultrasound VOCAL technique and application in fetal thoracic malformations

Parameter

Intra-observer

Inter-observer

ICC (95%CI)

Mean difference (95% LoA)

ICC (95%CI)

Mean difference (95% LoA)

Thoracic transverse diameter

0.9981

0.9967–0.9989

0.0062

− 0.2070–0.1946

0.9899

0.9823–0.9942

0.0054

− 0.2845–0.2953

Thoracic anteroposterior diameter

0.9992

0.9986–0.9995

0.0048

− 0.1039–0.1135

0.9948

0.9908–0.9970

− 0.0060

− 0.2613–0.2493

Thoracic circumference

0.9808

0.9665–0.9890

− 0.0470

− 0.2463–0.1523

0.9203

0.8662–0.9531

0.1286

− 2.7965–3.0537

Thoracic area

0.9874

0.9781–0.9928

− 0.0556

− 0.4865–0.3753

0.9798

0.9653–0.9883

0.0218

− 3.8034–3.8470

Lung volume

0.9388

0.9631–0.9878

− 0.0428

− 0.9143–0.8287

0.9191

0.9466–0.9823

− 0.5338

− 7.7247–6.6571

Thoracic volume

0.9590

0.9807–0.9937

0.0922

− 0.9856–1.1700

0.9411

0.9672–0.9892

− 0.4964

− 10.2373–9.2445

  1. ICC intraclass correlation coefficient, CI confidence interval, LoA limits of agreement