超声弹性成像在涎腺局灶性病变诊断中的初步应用

Value of ultrasound elastography in diagnosis of focal lesions in the parotid and submandibular glands

目的探讨超声弹性成像技术在腮腺和颌下腺局灶性病变诊断中的临床应用价值。方法对30例患者共30个腮腺或颌下腺局灶性病变行实时超声弹性成像检查，根据病灶软硬度不同进行评分，并与术后病理进行相关分析。结果超声弹性图中良性病变以1～3分多见，而恶性病变以4～5分多见，两组病变的弹性评分情况比较差异具有统计学意义（P〈0．01）。以≥4分作为判断恶性病变的标准，其敏感度为72．73％，特异度为84．21％，准确率为80．00％。结论超声弹性成像可为腮腺和颌下腺局灶性病变良恶性病变的鉴别诊断提供有价值的信息。

Objective To evaluate the applicative value of ultrasound elastography in diagnosis of focal lesions in the parotid and submandibular glands. Methods 30 patients（30 lesions） were scanned by real-time ultrasound elastography and were analyzed in elastography evaluated criteria （5 score method）. All the results were compared with the pathological types. Results The elastographic grades of most benign nodules were l - 3,while most of malignancy were 4 - 5. The elastographic grades of benign and malignant lesions were of significant difference statistically（ P 〈0.01）. If elastographic grade 4 or 5 were diagnosed as malignancies,the sensitivity, specificity and accuracy for diagnosing malignant lesions in the parotid and submandibular glands were 72.73 %, 84.21%, 80.00 %, respectively. Conclusions Ultrasound elastography is useful in the differential diagnosis of focal lesions in the parotid and submandibular glands.