应用高频彩超血流显像和能量图诊断腮腺肿瘤

The Effects of CDFI and CDE High frequency Ultrasonography ;on Diagnosis of Parotid Neoplasm

目的 :评价高频彩色多普勒在诊断腮腺肿瘤中的作用。方法 :采用具备彩色多普勒血流显像 (CDFI)和彩色多普勒能量图 (CDE)技术功能的彩色多普勒电脑声像仪对 36例腮腺病变进行二维超声定位下良、恶性肿瘤周边及内部血流信号、频谱测值和CDE图像观察。结果 :良性肿瘤形态为圆形、类圆形 ,边界清晰 ,内部为均匀低回声 ,诊断符合率为 90 % ;CDFI主要表现为星点状血流信号 ,收缩期峰值速度 (PS)为 18 6cm s和 16 2cm s。恶性肿瘤形态不规则 ,边界不完整 ,内部为强弱不均回声 ,诊断符合率为 87 5% ;CDFI主要表现为环绕状或线条状血流信号 ,PS为 35 2cm s和 32 4cm s ,与良性肿瘤有显著性差异 (P <0 0 5)。CDE显示血流信号较CDFI更为丰富。结论

Objective: To evaluate the effects of high frequency color ultrasonography on diagnosis of parotid tumors. Methods: 36 cases of parotid benign or malignant tumors were observed from margin to inner with color Doppler flow imaging (CDFI) and color Doppler energy (CDE) according to tumors' two dimention. Results: The features of benign tumors included round or round like shapes, clear margins and inner balanced echogram. The margin feature of CDFI was star like images, and the peak systolic celocity was up to 18 6 and 16 2 cm/s. The coincidence of diagnosis was 90%. Meanwhile, the shapes of malignant tumors showed irregular and incomplete mass and asymmetrical inner echogram. The primary charicteristics of CDFI were branch like or basket like images, and the peak systolic velocity was much higher (35 2 and 32 4 cm/s) than that of benign tumors. There was significant difference between these two groups (P<0 05). It indicated richer flow signals in CDE than in CDFI. Conclusion: CDFI and CDE show an important clinical value in diagnosing parotid neoplasm. ;