Yu.A. Stepanova, O.I. Ashivkina, D.A. Ionkin, A.V. Glotov, V.A. Vishnevsky А.V. Vishnevsky National Medical Research Center of Surgery, B. Serpukhovskaya Str., 27, Moscow, 117997, Russian Federation Е-mail: [email protected]

Introduction. Alveococcosis is a parasitic disease associated with the formation of the liver tumor-like lesion. This parasitic tumor has infiltrative growth and the ability to metastasize, that is, it exhibits the properties of malignant tumors. The disease is asymptomatic for a long time, as a result of which the lesion is often revealed with a significant spread of the pathological process. All this requires a high-quality pre-operative diagnosis. Therefore, the assessment of the possibilities of constantly updated diagnostic imaging methods is relevant at the present time. The studies in which researchers estimate an insignificant number of clinical observations (from 5 to 17), using various echo-contrast substances (of both the last and previous generations) on the use of echo contrast ultrasound in the treatment of alveococcal lesions are currently rare. It should be noted that in the presented study, the data obtained with ultrasound echo contrasting are compared with the data of other radiological methods of research. Comparison of the echo contrasting data of alveococcal liver damage with morphological data is not noted in the literature. Objective to determine the possibilities of ultrasound with echo contrast enhancement in the assessment of alveococcal liver damage. Materials and methods. The study included 15 patients aged from 36 to 54 years (men – 6, women – 9), who were in A.V. Vishnevsky National Medical Research Center of Surgery with a diagnosis of liver alveococcosis. Ultrasound examination was performed for all patients (B-mode, duplex scanning, echocontrast enhancement). All patients were operated on, the lesions were morphologically verified as alveococcosis. Results. The analysis of the data obtained during echo contrasting of liver alveococcal lesions showed that additional information in comparison with ultrasound in B-mode and duplex scanning can be obtained by two parameters: evaluation of the lesion structure; the prevalence of the pathological process. At the same time, the characteristics of the echo contrast of the parasitic node during ultrasound investigation allow us to speak about the activity of the pathological process and the prognosis of the development of the disease. Conclusion. Our experience of using ultrasound echo contrast to assess the structure and prevalence of alveococcal liver damage has shown the effectiveness of this technique. It is advisable to accumulate experience of such studies in order to evaluate the data obtained on a more representative sample.
liver alveococcosis, ultrasound, contrast-enhanced ultrasonography, research capabilities

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