Superficial inflammatory and primary neoplastic lymphadenopathy: diagnostic accuracy of power-doppler sonography
2004
Abstract Objective: To evaluate the sensitivity, specificity and diagnostic accuracy of a cut-off of the resistive index of 0.5 for the differentiation between inflammatory and neoplastic primary lymphadenopathies. Subjects and methods: We measured the resistive index of superficial enlarged lymph nodes in a total of 50 patients (29 males and 21 females; age range 12–72 years, mean age 41.6 year) using an ATL 5000 HDI. A resistive index greater than or equal to 0.5 indicated an inflammatory lymph node and a resistive index Results: The sensitivity of the resistive index for distinguishing inflammatory from neoplastic lymphadenopathy was 84.6%, the specificity 100% and the diagnostic accuracy 95.7% ( P Conclusion: The results of this study indicate that power-Doppler using a resistive index cut-off of 0.5 was a valid technique for distinguising between inflammatory and primary neoplastic lymph nodes in patients with superficial lymphadenopathies.
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