1.Objective: To evaluate the significance of the color Dopper ultrasound diagnosis of deep venous thrombosis of the low extremity.
目的：评价彩色多普勒超声诊断下肢深静脉血栓形成的价值。
2.Methods Color Dopper ultrasound was performed in 24 cases with renal masses and the ultrasonographic features were analyzed retrospectively.
方法对24例经手术及病理诊断的肾肿块声像图和彩色血流进行回顾性分析。
3.Two-dimensional; Color Dopper ultrasound; Lower limbs deep vein; Diagnosis.
二维；彩色多谱勒超声；下肢深静脉；血栓；诊断。
4.Objective To discuss the value of color Dopper ultrasound in the differential diagnosis of renal neoplasms .
目的探讨彩色多普勒超声对肾脏肿瘤鉴别诊断的价值。
5.It is found that Doppler-shift can influence the resonant position and Dopper -shift is more obvious if Rabi frequency is larger.
结果表明，多普勒频移对共振位置有精细的影响，并且拉比频率越大多普勒频移更加明显。