Abstract：Objective: To discuss the value of contrast-enhanced ultrasound(CEUS) in evaluating renal function in patients with compensated chronic renal failure. Methods: Forty-five patients with chronic renal failure were examined by CEUS and color Doppler flow imaging(CDFI). The study also included examination of blood biochemistry. Result: CEUS showed arriving time(AT), time to peak(TTP) and peak intensity(PI) was significantly different in all groups(P<0.05). With increasing renal function failure, AT and TTP delayed, and PI decreased. During the compensatory phase of renal function, the renal blood flow showed high velocity and low resistence index. At the decompensatory stage, the renal blood flow showed slow velocity and high resistence index. Those appearances were more significantly between interlobar artery and arcuate artery than major renal artery. Serum creatinine(Scr) and serum urea nitrogen(BUN) of the decompensatory group were more significantly different compared with the other two groups(P<0.05), and showed higher. Conclusion: CEUS is more helpful in evaluating renal function of the compensatory chronic renal failure.
2008, Vol. 19 
