Fig. 3
Correlation between elasticity index (EI) measurements on shear wave elastography (SWE) and the degree of fibrosis on surgical histopathology. a high EI area on SWE. b EMean. c EMax. Group1, conventional type of papillary thyroid carcinoma (n = 24); Group 2, non-conventional papillary thyroid carcinoma including follicular variant of papillary thyroid carcinoma (n = 2), follicular thyroid carcinoma (n = 2), and medullary thyroid carcinoma (n = 1). EMean, mean elasticity; EMax, maximum elasticity; kPa, kilo-Pascal