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Chinese Journal of Medical Ultrasound (Electronic Edition) ›› 2022, Vol. 19 ›› Issue (08): 761-766. doi: 10.3877/cma.j.issn.1672-6448.2022.08.006

• Superficial Parts Ultrasound • Previous Articles     Next Articles

Value of combined lymphatic and intravenous contrast-enhanced ultrasound in diagnosis of cervical lymph node metastasis from papillary thyroid carcinoma

Ying Wei1, Zhenlong Zhao1, Lili Peng1, Yan Li1, Naicong Lu1, Jie Wu1, Ming'an Yu1,()   

  1. 1. Department of Interventional Medicine, China-Japan Friendship Hospital, Beijing 100029, China
  • Received:2022-05-19 Online:2022-08-01 Published:2022-08-18
  • Contact: Ming'an Yu

Abstract:

Objective

To assess the value of the combination of lymphatic contrast-enhanced ultrasound (LCEUS) and intravenous contrast-enhanced ultrasound (IVCEUS) in the diagnosis of cervical lymph node metastasis (CLNM) from papillary thyroid carcinoma (PTC).

Methods

From November 2019 to June 2021, 47 patients with PTC confirmed by puncture pathology at China-Japan Friendship Hospital were selected. All patients underwent routine US, LCEUS, and IVCEUS examinations. The accuracy of routine US, LCEUS, IVCEUS, and LCEUS combined IVCEUS in the diagnosis of CLNM was compared using pathological results as the gold standard.

Results

Perfusion defects (94.6%, 56/59) and interruption of the bright ring (71.2%, 42/59) were the two typical LCEUS signs for diagnosing CLNM. On IVCEUS, CLNM appeared as centripetal perfusion (61%, 36/59) and heterogeneous hyper-enhancement (57.6%, 34/59). The diagnostic accuracy of the combination of LCEUS and IVCEUS in CLNM was 92.1%, which was higher than those of LCEUS (86.8%), IVCEUS (76.3%), and routine US (64.5%). The area under the ROC curve for the combination of LCEUS and IVCEUS was 0.865, which was higher than those of IVCEUS (0.764, P=0.044) and routine US (0.553, P=0.0005).

Conclusion

The combination of LCEUS and IVCEUS has promising diagnostic value for CLNM from PTC.

Key words: Papillary thyroid carcinoma, Lymphatic metastasis, Ultrasonography, Contrast-enhanced ultrasound

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