Objective: comparison of the effectiveness of using the Liver Imaging Reporting and Data System for CEUS (CEUS LI-RADS 2017) and for CT/MRI (CT/MRI LI-RADS 2018) in the diagnosis of liver tumors in patients with and without risk factors for hepatocellular carcinoma development. Retrospective analysis (based on morphological data) of the examination results of 165 patients with liver tumors (165 lesions) carried out. Group 1 included 61 patients with liver cirrhosis and chronic viral hepatitis B and C. Group 2 included 104 patients without risk factors for hepatocellular carcinoma. All patients underwent CEUS and CECT with the categorization according to CEUS LI-RADS 2017 and CT/MRI LI-RADS 2018 criteria. With the use of CEUS LI-RADS 2017 and CT/MRI LI-RADS 2018, the effectiveness in diagnosis of hepatocellular carcinoma (LR-4, LR-5) in high risk patients (group 1) was: sensitivity - 100.0%, specificity - 87.0%, and accuracy - 95.1% for CEUS; and 92.1%; 95.7%, and 93.4% for CECT. In the diagnosis of non-hepatocellular malignancy (LR-M) sensitivity, specificity, and accuracy for CEUS were 77.8%, 100.0%, and 96.7%; for CECT - 88.9%, 100.0%, and 98.4%. In patients with no risk factors (group 2) in the diagnosis of hepatocellular carcinoma CEUS showed sensitivity 100.0%, specificity 90.1%, and accuracy 91.3%; CECT - 100.0%, 72.5%, and 76.0%. In the diagnosis of non-hepatocellular malignancy sensitivity, specificity, and accuracy were 89.6%, 96.4%, and 93.3% for CEUS; 87.5%, 100.0%, and 94.2% for CECT. The use of LI-RADS systems allows standardizing the examination results interpretation in patients with high risk of hepatocellular carcinoma developing. The obtained results give the hope the updated system can be recommended for using in patients without risk factors for hepatocellular carcinoma.

The global professional medical communities continue discussion of thyroid malignancy risk stratification systems TI-RADS, which is intended to select thyroid nodules for biopsy performing. The TI-RADS scale should be uniform for all healthcare facilities of the country, easy-to-use and comprehensible for all specialists. The US and European versions of TI-RADS were presented at the end of 2017. This article presents the TI-RADS modification prepared for discussing in Russian professional medical communities, which based mainly on B-mode thyroid imaging data. The modification operates with the nodules size ≤1.0 cm and >1.0 cm, and distinguishes between main and small signs of thyroid malignancy. Main signs include parameters of B-mode imaging, and small signs - parameters of B-mode, Doppler imaging, and elastography. The term “pathological lymphadenopathy” is added to the TI-RADS category in abnormal homolateral lymph nodes presence.

Abnormal placentation (placenta previa/accreta) is a serious obstetric problem. Antenatal diagnosis builds on analysis of anamnestic, clinical, and instrumental data. The leading role among instrumental methods has an ultrasound examination. The work highlights the appropriate terminology, classifications, terms, and skills for performing ultrasound in accordance with national and international recommendations. The need of ultrasound protocol standardization in patients with suspected abnormal placentation in accordance with international recommendations is discussed.

The aim of the study was to investigate the influence of left ventricular local longitudinal systolic strain magnitude on risk of cardiovascular events in patients after acute coronary syndrome. 146 patients with verified acute coronary syndrome were examined. According to major adverse cardiac events (MACE) appearance in the post-hospital follow-up period they were divided into two groups. 45 patients with MACE were included in the 1st group, 101 patients without MACE - in the 2nd one. The follow-up median was 47 months, (25-75th percentiles - 32-60 months). Longitudinal systolic strain of anterior septal, inferior, and inferior septal walls of left ventricle was evaluated at apical views by two-dimensional speckle-tracking echocardiography. According to the Kaplan-Mayer survival analysis, risk of cardiovascular events for 5 years after acute coronary syndrome may be assessed with the use of initial values of left ventricular inferior and inferior septal walls longitudinal systolic strain (P = 0.01 and P = 0.002, respectively). If value of inferior and inferior septal walls longitudinal systolic strain decreases by less than 14%, the probability of MACE in patients 5 years after acute coronary syndrome increases by more than 20 and 30%, respectively. Thus, reduced longitudinal systolic strain of left ventricular inferior and inferior septal walls in patients with acute coronary syndrome is an adverse prognostic factor of increased risk of cardiovascular events during the long-term follow-up.

The paper provides the review of main methods of diagnosis and treatment response evaluation of lymphoma. The value of current imaging techniques, such as computed tomography, magnetic resonance imaging, positron emission tomography, and ultrasound, is discussed. The presented data reflect the value of ultrasound in the evaluation of altered superficial lymph nodes in lymphoma using B-mode, Doppler ultrasound, elastography, and contrast-enhanced ultrasound. Contrast-enhanced ultrasound and elastography capabilities in the evaluation of treatment response in lymphoma with superficial lymph node involvement are shown.