高频超声在涎腺疾病中的诊断价值

Diagnostic Value of HighFrequency Ultrasonography in the Diseases\= of Salivary Glands

应用高频超声对３０例涎腺疾病患者进行了检查，并对其中１５例患者做了彩色多普勒能量图（ＣＤＥ）检测，以评价高频超声和ＣＤＥ在涎腺疾病诊断中的价值。结果表明：①根据肿瘤形态、边界及内部回声三个指标来判断涎腺良恶性肿瘤，高频超声诊断良性肿瘤符合率为８６．７％，恶性肿瘤诊断符合率为８７．５％。②高频超声对涎腺炎性病变及腮腺囊肿的诊断符合率为１００％。③彩色多普勒血流显像（ＣＤＦＩ）显示恶性肿瘤血供较良性肿瘤丰富，周边血流信号以环绕状为主，内部血流信号以树枝状为主，良性病变则无血流信号或以星点状为主；恶性肿瘤收缩期峰值速度（ＰＳ）较良性病变高（Ｐ＜０．０５），如以ＰＳ＞３２ｃｍ／ｓ为恶性肿瘤诊断标准，敏感性、特异性和符合率分别为８７．５％、１００．０％、９２．０％。④ＣＤＥ能显示出较ＣＤＦＩ更丰富的血流信息。

Highfrequency ultrasound (HFU) was used to examine 30 patients with salivary glands diseases. 15 out of the 30 patients underwent color Doppler energy imaging (CDE) examination and the diagnostic values of HFU and CDE evalueted. The findings showed: 1) In terms of tumor's twodimensional imagings, three criterions (tumor shape, margin and echostructure) were established to diagnose salivary tumors with the coincidences of benign tumor diagnosis and malignant tumor diagnosis being 867% and 875% respectively; 2) For diagnosis of inflammatory diseases and cysts in salivary glands, the coincidence of HFU was 100%; 3) Color Doppler flow imaging(CDFI) showed there were richer flow signals in and around malignant tumors than benign lesions Most of the flow signals in and around malignant tumors were branchlike imaging and basketlike imaging respectively There were few flow signals in and around benign lesions The peak systolic velocity (PS)of malignant tumors was higher than benign lesions with the difference being significant between them (P<005). PS>32 cm/s referred as the criterion to diagnose malignant salivary tumors with sensitivity, specificity and coincidence being 875 %, 1000 %, 920 % respectively; 4)CDE showed richer flow signals than CDFI