Table 2 Intra-observer and inter-observer agreement of geometric measurements with 95% confidence intervals(CI)

SSG-TSA

0.785

0.746 to 0.825

0.723

0.687 to 0.815

SSG-TSD

0.802

0.707 to 0.859

0.768

0.615 to 0.804

SSG-TSW

0.853

0.787 to 0.939

0.868

0.805 to 0.924

PSG-TSA

0.783

0.696 to 0.827

0.702

0.651 to 0.785

PSG-TSD

0.786

0.713 to 0.838

0.754

0.726 to 0.837

PSG-TSW

0.836

0.793 to 0.906

0.855

0.788 to 0.930

CG-TSA

0.863

0.814 to 0.906

0.828

0.735 to 0.908

CG-TSD

0.786

0.708 to 0.855

0.783

0.717 to 0.893

CG-TSW

0.827

0.735 to 0.886

0.850

0.803 to 0.936