Colour-code Doppler ultrasonography was the best choice to diagnose DVT. 辅助诊断方法以彩色多普勒血流显像为最佳。
Conclusion High-frequency color doppler ultrasonography technique provides an important proof for differential diagnosis of parotid gland diseases. 结论彩色多普勒技术对腮腺良恶性肿瘤的鉴别诊断提供了重要的诊断依据。