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Objectives. To validate the ultrasound method of diagnosing visceral obesity in patients with cardiovascular diseases and metabolic syndrome. Material and methods. The study involved 115 people aged from 19 to 60 years, who represented a continuous random sample (examination sample). The diagnostic efficacy of shear wave ultrasound elastography of the lower perirenal visceral adipose tissue (VAT) was evaluated in 59 patients. Ultrasound examination was performed on the Logiq E9 ultrasound machine (GE Healthcare, USA); convex 3.5 MHz and linear 10.0 MHz sensors were used. Results. To assess visceral obesity, the following measurements are recommended: the area of the lower perirenal adipose tissue (AT), the distance between the surface of the rectus abdominis muscle and the anterior wall of the aorta, the thickness of the epicardial and pericardial AT, as well as the elastography of the lower part of the perirenal AT. According to the results of the performed validation of ultrasound VAT measuring techniques, the accuracy of visceral obesity diagnosing in patients with arterial hypertension with the use of the boundary values of the lower part perirenal AT area made up 87.8%. The accuracy of visceral obesity diagnosing in patients with coronary heart disease, taking into account the boundary values of the epicardial AT thickness equalled 86.2%, and pericardial AT thickness amounted to 95.4%. Diagnosing of visceral obesity in patients with metabolic syndrome by measuring four ultrasound parameters (area of the lower part of perirenal AT, thickness of intraabdominal AT, epicardial and pericardial VAT) was carried out with an accuracy of 86.1%. Elastic modulus determination during elastography of the lower part of the perirenal AT using the boundary values, established for patients with metabolic syndrome, was performed with an accuracy of 91.5%.

VALIDIZATION OF THE MOST INFORMATIVE TECHNIQUES FOR ULTRASOUND DIAGNOSTICS OF VISCERAL OBESITY