Colour-code Doppler ultrasonography was the best choice to diagnose DVT. 輔助診斷方法以彩色多普勒血流顯像為最佳。
Conclusion High-frequency color doppler ultrasonography technique provides an important proof for differential diagnosis of parotid gland diseases. 結論彩色多普勒技術對腮腺良惡性腫瘤的鑒別診斷提供了重要的診斷依據。