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探讨肾动脉血流量检测对小儿肾炎及胃病的临床意义和实用价值。方法采用彩色Doppler测量小儿急性肾炎（AG）和肾病综合征（NS）及正常儿童肾动脉收缩期及舒张期血流速度（Vmin），计算阻力指数（RI），结合临床综合分析其临床价值。结果肾炎、肾病组收缩期峰值血流速度（Vmax）及Vmin均减低。肾病组RI明显增高。结论彩色Doppler检测急性期肾炎和肾病综合征患儿的肾血流参数，可直接反应其肾内动脉血流动力学变化。
To investigate the clinical significance and practical value of detecting renal artery blood flow in children with nephritis and gastropathy. Methods The color Doppler was used to measure the renal artery systolic and diastolic blood flow velocities (Vmin) in pediatric acute nephritis (AG) and nephrotic syndrome (NS) and normal children. The resistance index (RI) was calculated and analyzed clinically. Results Nephritis, nephropathy systolic peak blood flow velocity (Vmax) and Vmin decreased. Kidney disease group RI was significantly higher. Conclusion Color Doppler detection of renal blood flow parameters in children with acute nephritis and nephrotic syndrome can directly reflect the changes of renal artery hemodynamics.