Semiquantitative analysis of intrarenal arterial Doppler flow spectra in healthy adults

摘要: In a prospective study on 60 healthy adults, 38 men and 22 women (age range, 20-70 years), semiquantitative analyses of intrarenal arterial Doppler waveforms were performed by means colour duplex sonography under standardised conditions. Furthermore, the effect heart rate calculation renoparenchymal spectra was evaluated. A total 115 normal kidneys studied, giving following values (mean +/- standard deviation): resistance index (RI): 57 4.5%, pulsatility (PI): 89 13%, pulsatile flow (PFI): 65 6%. There no different for women. The renal indices, however, found to be age dependent, with increasing trend RI PI decreasing PFI age, most probably due corresponding increase vascular mean blood pressure. an experimental study, we significant decrease paralleling rate. To eliminate i.e. interindividual comparison data or intraindividual follow-up, measurements indices can corrected using regression equations. results our studies emphasise that interpretations calculations should in consideration extrarenal factors, example patient's