Fig 1.
The process of the texture analysis.
The segmentation of thyroid cancers was manually conducted and then histogram parameters were automatically calculated.
Table 1.
Comparison of histogram parameters according to lymph node metastasis
Table 2.
Comparison of clinical and ultrasonographic features according to lymph node metastasis.
Table 3.
Multivariate logistic regression analysis for association between clinical and ultrasonographic features, histogram parameters and lymph node metastasis.
Table 4.
Interobserver variability for histogram parameters.