Application value of color Doppler ultrasound in the early diagnosis of diabetic nephropathy

Abstract

Objective To investigate the clinical value of color Doppler in the early diagnosis of diabetic nephropathy （DN）.Methods 69 cases of DN Phase I,II patients （group A） and 75 cases Phase III （B group） all underwent renal artery line Doppler flow imaging inspection .Renal aorta （ MRA） ,interlobar artery （ IRA） ,renal seg-mental artery blood flow （SRA） peak systolic velocity （Vsmax）,resistance index （RI） and diastolic minimum speed （ Vdmin） and other hemodynamic parameters of two groups were analyzed .Results The Doppler spectrum renal blood flow characteristics of early renal damage were：between group A,B,the main renal artery （MRA）,the kidney arterial segment Vdmin significantly reduce ,RI was significantly higher;the interlobar artery Vsmax （t=3.562 5,P=0.000 5）,Vdmin （t=5.252,P=0.000 0） were significantly lower,RI was significantly higher （t=9.166 0,P=0.000 0）;with the severity of renal dysfunction ,kidney color flow imaging reduce ,the kidney volume was significantly reduced in patients with stage Ⅲ.Conclusion Color Doppler ultrasound can clearly show the size of the patient′s kidney and renal artery blood flow parameters ,which has certain value in the diagnosis of early DN . Key words: Diabetic nephropathies; Ultrasonography,doppler,color