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Table 2 Elastic indices of shear wave elastography and metastatic status of 75 small cervical lymph nodes in 49 nasopharyngeal carcinoma patients who were histologically verified by ultrasound-guided core needle biopsy

From: RETRACTED ARTICLE: Ultrasound Elastography supplement assessing nodal status of magnetic resonance imaging staged cervical N0 patients with nasopharyngeal carcinoma

Categories of SWE

mean ± SD (kPa)

Cut-value (kPa)

N of ≥Cut-value

(positive/negative)

N of <Cut-value

(positive/negative)

p value

Emax

26.75 ± 16.45

23.33

13/24

2/36

0.001

Emin

9.82 ± 6.02

7.60

13/30

2/30

0.018

Emean

17.82 ± 10.14

16.07

12/20

3/40

0.001

  1. SWE: shear wave elastography; SD: standard deviation; Emax: the maximum of elasticity indices; Emean: the mean of elasticity indices; Emin: the minimum of elasticity indices