METHOD FOR PREDICTION OF VOLUME OF INTRAOPERATIVE BLOOD LOSS IN ORGAN-PRESERVING OPERATIONS IN TUMORS OF RENAL PARENCHYMA Russian patent published in 2019 - IPC A61B10/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely urology, oncourology, and can be used for preoperative planning and determining intraoperative blood loss during organ-preserving operations in renal parenchymal tumors. For this purpose diagnostic signs are: number of arteries feeding a tumor (x₁), distance from tumor edge to main vessels (x₂), tumor volume (x₃), largest diameter of arteries feeding tumor (x₄), tumor growth pattern (x₅), maximum tumor size (x₆), distance from proximal edge of tumor to ureter or pelvis system (x₇). Obtained values are used to calculate values of functions D₁ and D₂ by original design formulas. Function D₁ characterizes blood loss more than 200 ml, D₂ characterizes blood loss less than 200 ml. Comparing calculated values D₁ and D₂, wherein in case of obtaining a larger number in function D₂ conclusion is made on high probability of intraoperative blood loss more than 200 ml. At higher value in function D₁ conclusion is made on low probability of intraoperative blood loss more than 200 ml.

EFFECT: method provides a more objective assessment by using a complex of diagnostic features measured on 3D model of a pathological focus produced by the results of the radiation research methods.

1 cl, 2 dwg, 3 tbl, 2 ex