ARFI elastography for the evaluation of diffuse thyroid gland pathology: Preliminary results

Table 2 Mean acoustic radiation force impulse thyroid stiffness values in normal and diffuse thyroid pathology, with convex and linear probes, median of 10 measurements vs median of 5 measurements

	10 measurements (m/s)	5 measurements (m/s)	P value
Normal	2.01 ± 0.40	2.01 ± 0.40	1 (NS)
GD	2.64 ± 0.52	2.59 ± 0.54	0.66 (NS)
CAT	2.50 ± 0.56	2.45 ± 0.54	0.72 (NS)
Convex probe	2.09 ± 0.39	2.11 ± 0.45	0.85 (NS)
Linear probe	2.03 ± 0.36	2.06 ± 0.38	0.75 (NS)

GD: Graves’ disease; CAT: Chronic autoimmune thyroiditis; NS: Not significant; m/s: Meters/second.