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• Use of the genetic algorithm for devising a formula for liver volumetry

  The authors propose a method of liver volumetry using anthropometric data and the data obtained during an ultrasound examination. The algorithm is built on the basis of a genetic algorithm with coefficients calculated using linear regression. It is shown that the new formula is more accurate than previously proposed ones. The algorithm can be used to work out volumetric formulas for other organs in radiological studies. 1. Изранов В. А., Казанцева Н. В., Мартинович М. В. и др. Оценка точности вычисления...

• The ultrasound volumetry: selecting optimal formula based on linear liver dimensions (ex vivo study)

  The authors aim to identify the most optimal formula for calculating the volume of liver based on its linear size ex vivo. The authors measured liver volume in thirty-three corpses by placing the liver in water and calculating the displaced volume of the liquid. Liver was measured in each case. The data were then compared with the ones obtained by using five different formulas comprising linear liver measurements. 1. Изранов В. А., Казанцева Н. В., Белецкая М. А. Измерение объема печени с помощью...

• Assessment of hepatic volume ex vivo by the formulas of the ultrasound volumetry

  The article focuses on determination of the liver volume which is an urgent task for clinical medicine. It is directly connected to the need for an objective quantitative assessment of organ size. The complexity of calculating the volume is due to an irregular geometric shape of the organ, which can not be approximated to an ellipse or any other geometric figure. The aim of the study is to ex vivo evaluate the possibilities of measuring the volume of the liver based on the linear dimensions of the...

• Measurement of liver volume using imaging techniques of various modalities

  Evaluation of liver volume is of great importance in the management of certain liver diseases and systemic disorders involving the liver. With the development of innovative technologies for the partial liver resection and transplantation lifetime assessment of liver volume is of great interest. The volume of the liver is a sensitive indicator for ectopic fat deposition and metabolic syndrome in obesity. Manual assessment of liver volume using percussion and palpation methods has disadvantages associated...

• Ultrasound anatomy of the skin: review

  A review of the skin ultrasound publications shows that this examination is one of the most popular diagnostic procedures in dermatology, cosmetology and oncology. Current research data defined the concept of "ultrasound ana­tomy of the skin", it is noted that an ultrasound examination of healthy skin with modern sensors can visualize three of its layers, appendages of skin and ves­sels of small diameter, located in the dermis and the upper layer of sub­cu­ta­neous fat tissue. The significance...

• Challenges of the methodological approaches to the measurement and the evaluation of liver size

  Liver size varies widely according to age and different body types. Palpation and percussion are standard techniques to measure liver size, but are not accurate enough to detect a small increase. Accurate measurement of the liver by sonography is particularly relevant when a patient is suspected to have hepatitis. According to a number of validated sources, liver length varies greatly depending on the modalities and techniques used by the ultrasound specialist. Ultrasound liver size measurement has...

• KANET: application in ultrasonography and challenges of protocoling

  KANET is an abbreviation that stands for Kurjak Antenatal Neurobehavioral Test, the test of antenatal neurologic development proposed by A. Kurjak. KANET is widely used for the differentiated assessment of the fetus during a normal and high-risk pregnancy. The test helps to identify antenatal deviations in the development of the central nervous system of the fetus. The authors describe their experience of doing the test and offer a new technique of the KANET automated protocoling. 1. Изранов В...

• he new formula of the liver volume calculation: the integration into the automatic ultrasound diagnostic work station (AWS) "Assistant"

  The previous research work of the team (M. V. Martinovich et al.) developed a new formula for in vivo liver volume calculating using the genetic algorithm method. The purpose of this work was the integration of the formula in the automatic ultrasound diagnostic work station (AWS) "Assistant”. To achieve the goal, a number of the research objectives have been set. The possibility of assessing the size of the liver on the basis of its volume is a means of objectifying the diagnostic process. Integration...

• Physical foundations of liver elastography

  The problem we address in this paper is how the meanings of terms de­noting various liver elastography methods are understood when translated in­to Russian. We provide an overview of various elastography methods and their physical principles in order to give a better understand specific terms. The goal of this paper is to propose a glossary of elastography terms for dis­cussion by the professional community while relying on the physical princi­ples of ultrasonic methods for determining the rigidity...

• Modern aspects of diagnostics of compressional neuropathy of the median nerve in the carpal canal

  The article focuses on the examples of modern diagnostics of compression neuropathy of the median nerve in the carpal canal, because currently the unanimous assessment of the results during ultrasound and ENMG seems to be problematic. The purpose of the work is to propose a standard for the most effective algorithm for diagnosing patients with CCS. The study was per­formed on 98 patients examined in the Kaliningrad regional clinical hospital, the department of traumatology and orthopedics at the...

• The ulrasonographic semiotics of diffuse liver disease: Verification using the point shear-wave elastography

  This article estimates the severity of ultrasonographic changes in the liver at different stages of fibrosis. Sixty-three patients underwent B-mode ultrasound scanning of the spleen and the liver and ARFI-elastography of the liver. Elastography measured the shear wave speed from the 9th, 8th, and 7th intercostal spaces in the anterior axillary line at a depth of 6.0 cm from the skin surface. It was established that patients with fibrosis stages F1 and F2 exhibited from one to four and those with...

• Fetal behavior and the prediction of neuropsychiatric development

  Over the past 30 years, ultrasound examination during pregnancy revealed a surprising variety of fetus movements. It has been proven that the fetal activity begins at the end of the embryo period, week 7—9 of gestation. The analysis of the movemental patterns of the fetus has led to the hypothesis that these patterns directly reflect the development and maturation of the central nervous system. The 2D-4D ultrasound makes it possible to identify measurable parameters for assessing the neurological...

• Liver elastography techniques and the problems of Russian terminology

  In this review, we approach Russian terminology in elastography by discussing elastography technique classifications using terms that take into account the essence of physical patterns underlying various elastography techniques. Elastography techniques used in clinical practice are divided into four groups: strain elastography, transient elastography, point shear wave elastography, and 2D shear wave elastography. Based on physical principles, two types are identified: strain elastography and shear...