Conclusion CDVP appeared with more value and credibility than DCDU in diagnosing DVI and could be a new noninvasive auxiliary diagnostic modality for venous disease of the lower extremity.

• 结论彩色多普勒流速剖面图技术诊断下肢深静脉瓣膜功能不全比双功能彩超更直观，可信度更高，为下肢静脉疾病的无创伤性的辅助诊断提供一新途径。