<p>Myocardial perfusion imaging is considered one of the leading non-invasive diagnostic tools for the assessment of patients with known or suspected coronary artery disease and other cardiac pathologies. The technical improvement of the currently used gamma-tomographic devices has increased the diagnostic capability of this technique. In recent years, the use of dedicated cardiac SPECT cameras with solid-state cadmium–zinc–telluride (CZT) technology has increased in nuclear imaging. These new CZT technologies have several advantages over existing scanner models. The development of new CZT detectors and their collimator configuration has increased scanning sensitivity and spatial resolution values. Also, due to the significantly higher sensitivity of new CZT detectors and new methods of data processing, radiologists have already introduced new scanning protocols and methods for radionuclide assessment of myocardial blood flow, reserve and non-invasive visualisation of the functioning of the sympathetic nervous system into clinical practice. The purpose of this review is to provide data on the main technical characteristics of gamma cameras equipped CZT detectors as well as the current possibilities of using CZT cameras for examining patients with various cardiovascular diseases.</p><p>Received 1 April 2020. Revised 22 April 2020. Accepted 30 April 2019.</p><p><strong>Funding:</strong> The work is supported by a grant of the Russian Science Foundation No. 17-75-20118.</p><p><strong>Conflict of interest:</strong> Authors declare no conflict of interest.</p><p><strong>Author contributions</strong><br />Conception and study design: S.M. Minin, K.V. Zavadovky, A.B. Romanov<br />Drafting the article: S.M. Minin, K.V. Zavadovky, N.A. Nikitin, A.V. Mochula, A.B. Romanov<br />Critical revision of the article: S.M. Minin, K.V. Zavadovky<br />Final approval of the version to be published: S.M. Minin, K.V. Zavadovky, N.A. Nikitin, A.V. Mochula, A.B. Romanov</p>
We performed a comparative analysis of the scientific views of Russian and foreign scientists on the training activities of judo. Results were taken from scientific research performed by Russian and foreign scientists over the last 12 years. Using a structural analysis of important research work (articles and dissertations), we identified the main research directions of Russian scientists. We compared the results obtained with the scientific ideas of foreign experts. Our comparative analysis of the data showed that for some areas of wrestler training the views of Russian and foreign scientists significantly differ. There is a significant divergence of scientific views between Russian and foreign specialists in the sport of judo. This involved the problems of training athletes for competitive activities and the principles for selecting children and youths for judo during the initial stage of judo preparation.
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