Ismail A, Ademola B L, Yusuf L, Abdulmalik M A
Department of Radiology, Bayero University, Kano, Nigeria.
Nephrology Unit, Department of Medicine, Aminu Kano Teaching Hospital, Kano, Nigeria.
J West Afr Coll Surg. 2018 Jan-Mar;8(1):40-49.
Doppler sonography is a non-invasive modality for evaluation of renal vascular anatomy and flow dynamics, causes of secondary hypertension and renal diseases.
To determine the normal reference values for the renal arterial Doppler velocimetric indices in healthy adults and correlate them with gender and age.
The subjects consist of 36 males and 44 females. They were scanned using 3.5MHz transducer. After parenchymal assessment, the renal arteries were identified using colour mapping, followed by measurement of velocimetric indices on spectral Doppler tracings on each side.
The mean peak systolic velocity (PSV) was highest on the left side in males measuring 65.75 ± 28.41cm/sec and 60.7 ± 24.20cm/sec on the right. In females, it measured 61.83 ± 22.50cm/sec and 60.04 ± 24.67cm/sec on the right and left sides. The mean end diastolic velocity (EDV) was higher on the right side, measuring 23.59 ± 11.45cm/sec and 22.50 ± 8.37cm/sec in males and 25.19 ± 10.72cm/sec and 22.33 ± 8.47cm/sec in females. There was age related dependency on the mean resistive index (RI).
This study has shown that there was a statistical significant correlation between RI and systolic-diastolic ratio (S/D) with age. However, gender did not show significant correlation with these indices.
多普勒超声检查是一种用于评估肾血管解剖结构和血流动力学、继发性高血压病因及肾脏疾病的非侵入性检查方法。
确定健康成年人肾动脉多普勒测速指标的正常参考值，并将其与性别和年龄相关联。
研究对象包括36名男性和44名女性。使用3.5MHz探头对他们进行扫描。在进行实质评估后，通过彩色成像识别肾动脉，然后在每侧的频谱多普勒描记图上测量测速指标。
男性左侧平均收缩期峰值速度（PSV）最高，为65.75±28.41cm/秒，右侧为60.7±24.20cm/秒。女性右侧为61.83±22.50cm/秒，左侧为60.04±24.67cm/秒。平均舒张末期速度（EDV）右侧较高，男性右侧为23.59±11.45cm/秒，左侧为22.50±8.37cm/秒；女性右侧为25.19±10.72cm/秒，左侧为22.33±8.47cm/秒。平均阻力指数（RI）与年龄相关。
本研究表明，RI与收缩舒张比（S/D）与年龄之间存在统计学显著相关性。然而，性别与这些指标无显著相关性。
