中文摘要：

背景一些个人有多重肾的动脉。在动脉之一的严重狭窄可以引起倔强的高血压。在多重肾的动脉之一以内的狭窄的察觉通常要求了侵略过程，例如计算 tomographic angiography (CTA ) 和磁性的回声 angiography (MRA ) 。这研究与多重肾的动脉在多重 arteries.Methods 病人之一在严重狭窄的察觉报导了颜色 Doppler sonography (CDS ) 的申请，有严重狭窄的动脉之一回顾地被学习。山峰肾的动脉和 intrarenal CDS 模式的收缩速度(PSV ) 镇定、比较。诊断被数字减法 angiography (DSA ) 证实 .Results 有多重肾的动脉的四个孩子并且有狭窄的动脉之一被调查。他们由于倔强的高血压被招收。屏蔽的 CDS 与有狭窄的二根肾的动脉之一在每个病人的一个肾识别了二根肾的动脉 >70% 。患狭窄症的动脉的 PSV 高得多，并且患狭窄症的动脉供应的 intrarenal CDS 模式变成了非侵略的 CDS 技术可以是的 T-P patterns.Conclusion 在年轻病人在多重肾的动脉之一识别严重狭窄的一个有用方法。

英文摘要：

Background Some individuals have multiple renal arteries. Severe stenosis in one of the arteries may cause refractory hypertension. The detection of stenosis within one of the multiple renal arteries usually required invasive procedures, such as computed tomographic angiography （CTA） and magnetic resonance angiography （MRA）. This study reported the application of color Doppler sonography （CDS） in the detection of severe stenosis in one of the multiple arteries. Methods Patients with multiple renal arteries and one of the arteries with severe stenosis were retrospectively studied. Peak systolic velocities （PSV） of renal arteries and the intrarenal CDS patterns were collected and compared. The diagnosis was confirmed by digital subtraction angiography （DSA）. Results Four children with multiple renal arteries and one of the arteries with stenosis were investigated. They were admitted due to refractory hypertension. CDS screening identified two renal arteries in one kidney of each patient with one of the two renal arteries having stenosis 〉70%. The PSV of the stenosed arteries were much higher, and the intrarenal CDS patterns supplied by the stenosed arteries changed into T-P patterns. Conclusion Non-invasive CDS technology may be a useful method to identify severe stenosis in one of multiple renal arteries in younq patients.