The role of contrast-enhanced ultrasound in the diagnosis of different malignant (hepatocellular carcinoma, cholangiocarcinoma, liver metastases) and benign (hemangioma, focal nodular hyperplasia, hepatocellular adenoma) focal liver lesions was shown in the literature review. The enhancement patterns of lesions in different vascularphases and LI-RADS algorithm were discussed. Contrast-enhanced ultrasound methodology (ultrasound equipment settings and ultrasound contrast agent dosage) and artifacts (background noise, acoustic shadows, and pseudo amplification) were described. Artifacts occurrence causes, influence on the interpretation, and elimination methods were discussed.

А retrospective analysis of 153 thyroid nodules echograms (in 151 patient) was performed with the use of two TI-RADS classification versions (European and Russian). The image analysis was done by two experts from different medical centers independently. Each expert had more than 10 years’ experience in thyroid ultrasound and more than 5 years in TI-RADS classification use. No significant differences were found between both experts’ results in dividing nodules in to the groups with the use of both TI-RADS classification versions (P > 0.05). The experts’ opinions were coincided in 107 of 153 (69.9%) cases with using the European version of TI-RADS classification. The interobserver agreement (Cohen’s kappa coefficient) was 0.567. With the use of Russian TI-RADS the observers’ opinions were coincided in 112 of 153 ( 73.2%) cases. The interobserver agreement was 0.621. The high sensitivity (94.3% for Russian TI-RADS and 91.0% for European TI-RADS) with low specificity (53.4% for Russian TI-RADS and 53.9% for European TI-RADS) was obtained for both versions of classification. High reproducibility and interobserver agreement were found for both.

The aim of the study was right ventricle strain and displacement comparative evaluation with the use of speckle tracking echocardiography and pulse-wave tissue Doppler imaging in patients with arterial hypertension and healthy individuals. A total of 62 patients (36 men and 26 women) aged 31 to 59 years were included in to the study. 28 of them were untreated patients with arterial hypertension stage I. Significant differences between the groups were obtained in early (Ea) and late (Aa) diastolic movement velocities of tricuspid annulus lateral and medial segments, their ratios (Ea/Aa), and Ea acceleration rate of tricuspid annulus lateral segment (P < 0.05). Statistically significant decrease of right ventricle peak systolic longitudinal strain (S) and early diastolic velocity (V E) (modulus) assessed with speckle tracking echocardiography were obtained in patients with arterial hypertension stage I.