Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran;
Int J Gen Med. 2010 Nov 16;3:371-3. doi: 10.2147/IJGM.S14119.
Among numerous modalities applied for evaluation of kidney diseases, Doppler ultrasonography (DU) provides information about the hemodynamic status of the kidneys. Meanwhile, the variability in DU parameters of the right and left kidney is a matter of controversy. The aim of this study was to determine whether any difference exists between the DU indices of the right and left kidney.
Retrospectively, we collected DU findings of 25 healthy potential renal transplant donors. All donors underwent renal DU and multidetector computed tomographic angiography before donor nephrectomy. DU indices, including peak systolic volume (PSV), resistive index (RI), pulsatility index (PI), end-diastolic volume (EDV), and acceleration time (AT), were recorded.
The median age of the donors was 27 (range 23-39) years. The median PSV, RI, EDV, and AT for the right kidney were 29 cm/sec, 0.59, 10.9 cm/sec, and 50 msec, respectively. For the left kidney, the median PSV, RI, EDV, and AT were, respectively, 26.8 cm/sec, 0.60, 10.6 cm/sec, and 43 msec. Among the DU indices, median PI of the right kidney was significantly different from that of the left kidney (1.02 versus 0.95, P = 0.01).
In conclusion, the present study revealed that right kidney DU indices, except for PI, may not differ from those of the left kidney.
在众多用于评估肾脏疾病的方法中，多普勒超声（DU）提供了有关肾脏血液动力学状态的信息。同时，右肾和左肾 DU 参数的可变性是一个有争议的问题。本研究的目的是确定右肾和左肾的 DU 指数是否存在差异。
我们回顾性地收集了 25 名健康潜在肾移植供体的 DU 检查结果。所有供体在供肾切除术前均接受了肾脏 DU 和多排 CT 血管造影检查。记录 DU 指数，包括收缩期峰值速度（PSV）、阻力指数（RI）、搏动指数（PI）、舒张末期容积（EDV）和加速时间（AT）。
供体的中位年龄为 27 岁（范围 23-39 岁）。右肾 PSV、RI、EDV 和 AT 的中位数分别为 29cm/sec、0.59、10.9cm/sec 和 50msec。左肾 PSV、RI、EDV 和 AT 的中位数分别为 26.8cm/sec、0.60、10.6cm/sec 和 43msec。在 DU 指数中，右肾的 PI 中位数明显不同于左肾（1.02 与 0.95，P=0.01）。
总之，本研究表明，右肾的 DU 指数（除 PI 外）可能与左肾无差异。
