METHOD OF DIFFERENTIAL DIAGNOSTICS OF SUBCLINICAL AND STAGES OF CLINICAL ACUTE KIDNEY INJURIES Russian patent published in 2023 - IPC A61B6/00 

FIELD: medicine; radiation diagnostics.

SUBSTANCE: invention can be used for differential diagnosis of subclinical and stages of clinical acute kidney injury. Magnetic resonance imaging of the kidneys is performed in the mode of non-contrast ASL-perfusion of the kidneys, with a quantitative assessment of perfusion in the kidney parenchyma. If the ASL perfusion values in the renal parenchyma are from 469 to 301 ml/100 g/min, there is subclinical acute kidney injury. If the perfusion rates in the kidney parenchyma are less than or equal to 300 ml/100 g/min, there is clinical kidney damage, namely: from 225 to 300 ml/100 g/min of stage I, from 202 to 224 ml/100 g/min of about stage II, from 99 to 201 ml/100 g/min of about stage III.

EFFECT: method makes it possible to increase the accuracy and information content of differential diagnosis of acute kidney injury, promotes early detection of acute injury in patients with various pathologies, by determining the ASL perfusion index in the kidney parenchyma.

1 cl, 12 ex