Efficiency of high-frequency ultrasound elastography in differential diagnosis of thyroid nodules
Objective:To observe efficiency of high-frequency ultrasound elastography in differential diagnosis of thyroid nodules.Methods:A cross-sectional study was conducted on 83 patients with thyroid nodules admitted to this hospital from March 2022 to October 2023.All patients were given high-frequency ultrasound elastography and conventional ultrasound examination.Using the results of pathological biopsy as the gold standard,the diagnostic results were statistically analyzed.The efficiencies of high-frequency ultrasound elastography and conventional ultrasound in the diagnosis of thyroid nodules was compared.The levels of ultrasonic elastography parameters[diastolic minimum blood flow velocity(D),pulsatility index(PI),ultrasonic elastography score,resistance index(RI),strain rate ratio]in the patients with benign and malignant nodules were compared.Results:The results of pathological biopsy showed that among the 83 patients with thyroid nodules,55 were malignant and 28 were benign.The high-frequency ultrasound elastography showed that 55 cases were malignant and 28 cases were benign.The conventional ultrasound examination showed that 52 cases were malignant and 31 cases were benign.The specificity,the sensitivity and the accuracy of high-frequency ultrasound elastography in the diagnosis of malignant thyroid nodules were higher than those of conventional ultrasound,the missed diagnosis rate and misdiagnosis rate were lower than those of conventional ultrasound,and the differences were statistically significant(P<0.05).The ultrasonic elasticity score,the strain rate ratio,and the D,PI and RI value of the patients with malignant nodules were higher than those of the patients with benign nodules,and the differences were statistically significant(P<0.05).Conclusions:The efficiency of high-frequency ultrasound elastography in the differential diagnosis of thyroid nodules is higher than that of conventional ultrasound.
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