【摘要】 目的 :观察慢性肾病患者的彩色 (CDFI)及能量多普勒血流图 (CDPI)变化并与病理结果进行对照分析。材料与方法 :分别对临床确诊并经肾穿刺活检病理证实的 80例肾实质弥漫性疾病患者及 40例正常对照进行二维超声 ,观察肾实质回声情况 ,CDFI、CDPI显示肾血流灌注状况并计算肾血管阻力指数 (RI)。结果 :病变在肾间质的肾脏RI为 0 70± 0 0 2 ,在肾小球的RI为 0 5 3± 0 0 5 ,在肾血管的RI为 0 76± 0 0 2 ,三者间有显著差异。肾脏回声异常与否在RI间无显著差异。CDPI在肾功能的不同时期可表现为充满型、边缘缺损型、星点型及无血流型。结论 :影响多普勒信号的主要因素在于肾脏原发病的位置 ,小管间质及血管疾病其RI升高 ,病变局限于肾小球的RI正常。CDPI对判断肾功能状态及预后估计有一定意义。更多还原

【Abstract】 Purpose:To compare the color Doppler flow image (CDFI) and color Doppler power image (CDPI) of diffusive renal parenchymal disease and pathological changes.Materials and Methods:CDFI and CDPI were used to study 80 patients who had pathological evidences and 40 normal persons as control.Renocortical echo was evaluated by two-dimensional ultrasound while CDFI and CDPI were used to qualitatively study the blood perfusion.Results:Kidneys with active disease in the tubulointerstitial compartment had a mean RI of 0.70±0.02;this was statistically significantly different (P<0.01) from the RI in kidneys with disease limited to the glomeruli(mean RI of 0.53±0.05) and vasculopathy (mean RI of 0.76±0.02).Kidneys found to be abnormally echogenic did not have RI significantly different from kidneys of normal echogenicity.During different status of renal function,CDPI display as fullness type,fringe vacant type,star type and no flow type.Conclusion:the production of Doppler waveform changes is strongly influence by the site of the main disease within the kidney.Active disease within the tubulointerstitial compartment or vasculopathy generally resulted in an elevated RI,whereas disease limited to the glomeruli,no matter how severe,did not significantly elevate the RI.CDPI play a role in evaluation of renal functional status and prognosis.更多还原