METHOD FOR EVALUATING PRESENCE PROBABILITY OF TIGHT-BINDING PARANEURAL FAT SOLDERED TO RENAL CAPSULE WHEN PLANNING ORGAN-PRESERVING KIDNEY SURGERIES Russian patent published in 2020 - IPC A61B5/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to urology. 3D kidney model is constructed from images of multispiral computed tomography with contrasting obtained in native, arterial, venous and excretory phases. Constructed 3D model is analyzed with visual determination on the surface of the renal parenchyma of structures in the form of protruding irregularities in paranephric fibre formed by cicatrical alterations in paranephric fibre. Amounts of these irregularities in paraneural fibre, their height and maximum width at the base are determined at the level of kidney parenchyma with further assignment to the obtained values of the ball score. If observing no protruding irregularities in paranephric fibre, 0 points are assigned. If the number of asperities in the paranephric fibre from 1 to 5 inclusive, 1 point is awarded, more than 5 irregularities in the paranephalic cellulose - 2 points. If the height of half and more irregularities of the entire detected number of irregularities in paranephric fibre, less than 5 mm, 1 point is assigned. If the height of more than 50 % of the irregularities in the paranephric fibre equals and exceeds 5 mm, 2 points are assigned. If the base is parenchyma-wide, the kidneys of all irregularities in the paranephric fibre less than 5 mm are assigned 0 points. If the width of at least one irregularity in the paranephric fibre from 5 mm and more is 1 point. Obtained points are summed up, and if the value of the sum of one to three points is obtained, the low likelihood of severely paranebular fat soldered to the renal capsule is stated. If the total value is 4 or 5 points, a high likelihood of a tight paranephalic fat soldered to a renal capsule is stated.

EFFECT: method enables providing a reliable and objective assessment of the patient's presence of paranephric fat, soldered with a kidney capsule when planning organ-preserving kidney surgeries.

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