ArticleCureus2025
A Comparative Evaluation of Strain and Shear Wave Ultrasound Elastography for Characterizing Cervical Lymphadenopathy.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
backgroundCervical lymphadenopathy has varied causes, from benign infections to malignancy. Accurate differentiation is crucial for staging and treatment. While fine needle aspiration cytology and histopathology are considered the gold standards, they are invasive procedures. Conventional ultrasound offers structural and vascular assessment but limited specificity. Elastography, including strain elastography and shear wave elastography (SWE), measures tissue stiffness, which is typically higher in malignancies.
aimThis study aimed to assess the role of strain and SWE in differentiating benign from malignant cervical lymph nodes.
methodsIn this cross-sectional study at a tertiary care center, 97 cervical lymph nodes from patients aged 5-60 years were evaluated with B-mode ultrasound, color Doppler, strain ratio, and SWE. Histopathology/cytology served as the reference. Receiver operating characteristic analysis determined diagnostic performance.
resultsMalignancy was associated with older age, female sex, levels II and IV, absent hilum, heterogeneous echotexture, and peripheral vascularity (t = -3.64, p = 0.001). Malignant nodes had higher mean elasticity (72.06 vs. 9.23 kPa) and strain ratio (2.30 vs. 1.18) (t = -3.64, p = 0.001). SWE velocity cutoff 2.195 m/s achieved 100% sensitivity and 85% specificity (area under the curve, AUC = 0.940). A strain ratio cutoff of 1.465 achieved 91.5% sensitivity and 99% specificity (AUC = 0.956).
conclusionStrain and SWE, combined with conventional US, provide high accuracy in differentiating cervical lymph node pathology, thereby reducing the need for unnecessary invasive procedures.
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