Dependence of Thyroid Sonographic Markers of Malignancy and Its Influence on the Diagnostic Value of Sonographic Findings
Table 2
Statistical significance of associations between particular features. Values given— value; percentage of lesions with the feature in line possessing the feature from column; percentage of lesions with feature from line without the feature from column. For elasticity, value was given for the difference between two means.
Taller than wide
Hypoechogenicity
Halo absence
Irregular margins
Elasticity
Solid character
Microcalcifications
Macrocalcifications
Taller than wide
= 0.42. 58.6 versus 66.6%
= 0.40. 92.7 versus 85.7%
= 0.51. 31.0 versus 35.5%
= 0.89
= 0.43. 67.9 versus 58.5%
= 0.21. 28.6 versus 7.4%
= 0.01. 20.7 versus 6.1%
Hypoechogenicity
= 0.42. 6.7 versus 9.2%
= 0.54. 84.7 versus 87.0%
= 1.0. 26.4 versus 25.2%
= 0.27
Not evaluated
= 0.21. 20.1 versus 14.5%
= 0.11. 9.5 versus 4.6%
Halo absence
= 0.40. 7.8 versus 3.7%
= 0.54. 62.3 versus 66.6%
<0.0001. 1.8 versus 29.8%
= 0.50
= 0.30. 66.0 versus 58.1%
= 1.0. 18.4 versus 17.0%
= 1.0. 7.5 versus 7.8%
Irregular margins
= 0.51. 9.0 versus 7.0%
= 1.0. 67.0 versus 65.4%
< 0.0001. 99.0 versus 81.8%
= 0.80
= 0.64. 57.0 versus 60.0%
= 0.77. 22.0 versus 20.4%
< 0.0001. 18.0 versus 4.2%
Elasticity
= 0.89
= 0.27
= 0.50
= 0.80
= 0.003
= 0.001
= 0.0001
Solid character
= 0.43. 8.3 versus 5.9%
Not evaluated
= 0.30. 84.6 versus 88.6%
= 0.64. 25.0 versus 27.4%
= 0.003
= 0.11. 15.4 versus 22.3%
= 1.0. 7.9 versus 8.2%
Microcalcifications
= 0.21. 11.4 versus 6.7%
= 0.21. 72.9 versus 64.4%
= 1.0. 87.1 versus 86.0%
= 0.77. 31.4 versus 27.4%
= 0.001
= 0.11. 50.0 versus 61.3%
< 0.0001. 21.4 versus 4.5%
Macrocalcifications
= 0.01. 21.4 versus 6.7%
= 0.11. 80.0 versus 64.8%
= 1.0. 86.2 versus 86.6%
< 0.0001. 60.0 versus 3.4%
= 0.0001
= 1.0. 60.0 versus 59.2%
< 0.0001. 50.0 versus 4.2%
All lesions with cystic component were considered as those with heterogeneous echogenicity; thus lesions considered hypoechogenic were all solid ones.
