A Study on the Ultrasound Features of Benign and Malignant Thyroid Nodules Using High Frequency Color Doppler Ultrasound
Objective:To analyze the diagnostic value and ultrasound features of high-frequency ultrasound in distinguishing benign and malignant thyroid nodules.Methods:A retrospective analysis was used to select 60 patients with benign and malignant thyroid nodules diagnosed and treated in our hospital from January 2022 to December 2023 as the subjects.All patients underwent high-frequency ultrasound examination to observe the diagnostic results and compare the ultrasound features and arterial blood flow parameters of benign and malignant nodules.Results:①A total of 77 nodules were detected in 60 patients,with 21 malignant nodules and 56 benign nodules detected by pathology;High frequency ultrasound detected 23 malignant nodules and 54 benign nodules.Using pathological examination as the gold standard,the sensitivity of high-frequency ultrasound was 95.24%,the specificity was 94.64%,the conformity rate was 94.81%,and the accuracy index was 0.90.②Malignant nodules were mainly characterized by blurred boundaries,irregular morphology,aspect ratio≥1,low internal echogenicity,capsule invasion,microcalcifications,and blood flow of 2-3 levels,while benign nodules were the opposite,with statistical differences(P<0.05).③The Vmax of malignant nodules was(33.50±4.33)cm/s,Vmin was(15.34±2.75)cm/s,and RI value was(0.73±0.28),which was higher than that of benign nodules(27.63±3.59)cm/s,(11.02±2.26)cm/s,and(0.46±0.19),with statistical differences(P<0.05).Conclusion:There are significant differences in the ultrasound characteristics and arterial blood flow parameters between benign and malignant thyroid nodules,which can be differentiated and diagnosed through high-frequency ultrasound examination,providing data support for clinical treatment.
thyroid noduleshigh frequency color ultrasounddifferential diagnosisaudiovisual features
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