Department of Radiology, Eskisehir Osmangazi University Faculty of Medicine, Meselik, 26480 Eskişehir, Turkey.
Jpn J Radiol. 2013 Jan;31(1):39-44. doi: 10.1007/s11604-012-0142-z. Epub 2012 Oct 10.
The aim of the study was to evaluate the renal resistive index (RI) and pulsatility index (PI) in patients with pleural effusion (PE).
We studied the mean renal RI and PI in 50 patients with PE and 30 healthy volunteers by Doppler sonography. We grouped effusion as unilateral and bilateral. Statistical analysis was done by independent t test and correlation coefficient analysis.
The mean RI/PI in healthy volunteers and in PE patients was 0.58/0.93 and 0.72/1.35, respectively. We observed a significantly higher RI and PI in patients when compared with healthy volunteers (all p < 0.001). We found no difference between the renal RI or PI related to unilateral (0.71 or 1.34, respectively) or bilateral effusion (0.74 or 1.55, respectively) (p > 0.05).
Pleural effusion might result in increased renal impedance as seen in cirrhosis, which is a rather complicated pathophysiological process, without causing any morphological changes in kidneys.
本研究旨在评估胸腔积液（PE）患者的肾阻力指数（RI）和搏动指数（PI）。
我们通过多普勒超声检查了 50 例胸腔积液患者和 30 名健康志愿者的平均肾 RI 和 PI。我们将胸腔积液分为单侧和双侧。通过独立 t 检验和相关系数分析进行统计学分析。
健康志愿者和胸腔积液患者的平均 RI/PI 分别为 0.58/0.93 和 0.72/1.35。与健康志愿者相比，患者的 RI 和 PI 显著升高（均 p < 0.001）。我们发现单侧（0.71 或 1.34）或双侧胸腔积液（0.74 或 1.55）与肾 RI 或 PI 无关（p > 0.05）。
胸腔积液可能导致肾脏阻抗增加，就像肝硬化一样，这是一个相当复杂的病理生理过程，而不会引起肾脏的任何形态变化。
