METHOD FOR PREDICTING OPTIMAL TIME OF THERMAL ISCHEMIA ACCOMPANYING ORGAN-PRESERVING OPERATIONS IN RENAL PARENCHYMAL TUMORS Russian patent published in 2019 - IPC A61B10/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to urology, oncourology. Following diagnostic criteria are determined: number of arteries feeding the tumor (x₁), tumor volume (x₂), largest diameter of arteries feeding tumor (x₃), maximum tumor size (x₄), distance from nearest tumor edge to ureter or pelvis system (x₅), which is measured in points, wherein distance of more than 7 mm is assigned 0 points, 7 mm and less is 1 point; distance from tumor edge to main vessels (x₆), which is measured in mm, tumor growth pattern (x₇). Said indicators are assigned points. Based on the obtained points, calculating values of functions D₁ is ischemia time to 20 min and D₂ is ischemia time more than 20 minutes by original formulas. Then calculated values D₁ and D₂, wherein in case of obtaining a larger number in function D₂ conclusion is made on high probability of thermal ischemia for more than 20 minutes, with a greater value in function D₁ high probability of ischemia less than 20 min is stated.

EFFECT: method enables predicting the ischemia time more or less than 20 min, which influences the determination of tumor resectability, obtaining an objective and accurate prediction.

1 cl, 2 ex, 2 dwg, 3 tbl