Impact of Fibrotic Tissue on Shear Wave Velocity in Thyroid: An Ex Vivo Study with Fresh Thyroid Specimens

Table 1

Number and characteristics of specimens of each lesion.

		Normal	AIT	Benign nodule	Malignant nodule	Lymph node
		15	16	19	40	19
Measurable		15	16	19	36	16
SWV (mean ± SD)		1.40 ± 0.20	2.01 ± 0.42	1.34 ± 0.37	2.30 ± 0.82	1.72 ± 0.57
Fibrosis	No	15	3	19	12	9
	Moderate	0	8	0	20	8
	Severe	0	5	0	8	2

Note: SWV, shear wave velocity; SD, standard deviation; AIT, autoimmune thyroiditis.