METHOD OF ESTIMATING DOPPLEROGRAPHIC INDICES OF RENAL BLOOD FLOW IN CHILDREN AND TEENAGERS Russian patent published in 2012 - IPC A61B8/06 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to pediatrics, children's nephrology and urology, and is intended for estimation of dopplerographic indices of renal blood flow in children and teenagers. During ultrasonic dopplerography of kidneys determined are: maximal systolic rate of blood flow - MCR (cm/s), final diastolic rate - FDR (cm/s) and index of resistance (IR) by formula: MCR-FDR/MSR at the level of main renal artery - 1 level, segmental - 2 level, interlobar - 3 level and arch - 4 level of kidney artery. If MSR value is from 81.8 to 122.5 cm/s - 1 level, 43.8-84.4 cm/s - 2 level, 17.5-40.0 cm/s - 3 level and 11.2-16.4 cm/s - 4 level; FDR from 23.5 to 56.2 cm/s - 1 level, 9.1-32.4 cm/s - 2 level, 6.7-16.5 cm/s - 3 level and 3.1-10.6 cm/s - 4 level and IR from 0.59 to 0.69 - 1 level, 0.50-0.72 - 2 level, 0.52-0.68 - 3 level and 0.49-0.64 - 4 level renal blood flow is estimated as normal to adequately functioning kidney. If MSR is higher than 122.5 cm/s - 1 level and FDR is higher than 56.2 cm/s - 1 level diagnosed is increase of perfusion in kidney, and if MSR is lower than 81.8 cm/s - 1 level and FSR is lower than 23.5 cm/s - 1 level reduction of perfusion in kidney. If IP is higher than 0.69 - 1 level, 0.72 - 2 level, 0.68 - 3 level and 0.64 - 4 level increase of peripheral resistance in form of vasospasm is diagnosed; id IP reduction is less than 0.59 - 1 level, 0.50 - 2 level, 0.52 - 3 level and 0.49 - 4 level diagnosed is pathologic reaction of vascular wall of microcirculatory way arteries in form of its rigidity.

EFFECT: method makes it possible to increase accuracy of estimation of hemodynamic disturbances in kidneys in children and teenagers.

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