SINGLE-ENERGY MULTISPIRAL COMPUTED TOMOGRAPHY IN THE ASSESSMENT OF RENAL RESIDUAL CALCULUS IN PATIENTS WITH UROLITHIASIS AFTER PERCUTANEOUS NEPHROLITHOTRIPSY
P urpose. Additional assessment of the properties of residual kidney stones according to single-energy multispiral computed tomography in the early postoperative period after percutaneous nephrolithotripsy for coralloid nephrolithiasis K1-K3. Materials and methods. The study involved 68 patients with residual kidney stones, established after surgical treatment by percutaneous nephrolithotripsy coral nephrolithiasis K1-K3. In order to assess the properties of residual calculus, all patients underwent multispiral computed tomography of the kidneys at the postoperative stage (on day 7 after surgery and 3 months later). Results. The study revealed the presence of an inverse significant statistically significant (p<0.05) relationship between the coefficient of homogeneity of residual calculus and the achievement of complete release of the kidney from the calculus after conservative therapy. The rest of the measured parameters also had statistically significant (p<0.05) dependences, but they had less influence on the outcome of treatment. According to the results of the ROC-analysis, all studied indicators of residual concretions were characterized by high sensitivity and specificity. Conclusion. The obtained results expand the understanding of the possibilities of single-energy MSCT in the multiparametric assessment of the properties of granule concretions. The coefficient of homogeneity has a high sensitivity and specificity (area under the curve AUC=0.86±0.037) and can be used as an objective criterion in determining the direction of treatment strategy for patients after percutaneous nephrolithotripsy.