Clinical value of high-frequency color Doppler ultrasound in the detection of axillary lymph node metastasis in breast cancer / 中国基层医药

ABSTRACT

Objective:To analyze the clinical value of high-frequency color Doppler ultrasound in the detection of axillary lymph node metastasis in breast cancer.Methods:The clinical data of 60 patients with breast cancer who received treatment in Hangzhou Hospital, Zhejiang Medical & Health Group between March 2017 and March 2019 were retrospectively analyzed. Based on pathological results, 34 patients with breast cancer who had axillary lymph node metastasis were included in the observation group, and 26 patients without axillary lymph node metastasis were included in the control group. Both groups of patients underwent high-frequency color Doppler ultrasound examination. Ultrasound image characteristics, distribution of blood flow within the lymph nodes, and grading of blood flow signals were compared between the two groups, and ultrasound diagnosis results were analyzed.Results:Detection rate of cortical thickening, detection rate of lymph node long-diameter to lymph node short-diameter ratio > 2, detection rate of blurred lymph node borders, and detection rate of calcified foci within lymph nodes in the observation group were 55.9% (19/34), 58.8% (20/34), 61.8% (21/34), 52.9% (18/34), respectively, which were significantly higher than those in the control group [11.5% (3/26), 26.9% (7/26), 19.2% (5/26), 7.7% (2/26), χ2 = 12.48, 6.06, 10.85, 13.57, all P < 0.05]. The percentage of peripheral type blood flow distribution in the observation group was significantly higher than that in the control group and the percentage of portal type blood flow distribution in the observation group was significantly lower than that in the control group (both P < 0.05). The percentage of grade 2 blood flow signal in the observation group was significantly lower than that in control group, and the percentage of grade 3 blood flow signal in the observation group was significantly higher than that in the control group (both P < 0.05). The sensitivity, specificity, misdiagnosis rate and missed diagnosis rate of ultrasound in the detection of axillary lymph node metastasis in breast cancer were 88.2% (30/34), 73.1% (19/26), 26.9% (7/26), and 11.8% (4/34), respectively. Conclusion:High-frequency color Doppler ultrasonography in the detection of breast cancer axillary lymph node metastasis has ideal accuracy, and its diagnostic results are of high reference value.