Publication de 8 numéros par an
ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074
Indexed in
CRYOPROBE AND URETHRAL WARMING SYSTEM HEAT TRANSFER: ULTRASOUND GEL PHANTOM STUDY
RÉSUMÉ
Modern medical cryoequipment application methods (for example, for the third generation of cryosurgical systems) are not capable of providing sufficiently accurate cryoexposure dosing to complex target regions. The same problem applies to the methods providing therapeutic, hypothermic, and cryopreservation effects. To improve the assurance of the dosing quality it is necessary to have a sufficient quantity of experimental data on actual particular cases of cryoexposure. One such case that of the simultaneous application of a heater and a cryoprobe. During prostate cryoablation a warming catheter is used to prevent damage to the urethra. To obtain up-to-date experimental data, two physical experiments at different initial temperatures of the tissue phantom were carried out (at 24°C and 37°C). The minimum temperatures near the cryoprobe, the shape and dimensions of the freezing zone, and the temperature on the surface of the warming catheter were defined. The influence of taking into account the initial temperature of the target region was shown. The results of this study may be used when designing cryoprobe placement near urethral warming.
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Burkov I.A., Pushkarev A.V., Shakurov A.V., Tsiganov D.I., Zherdev A.A., Numerical simulation of multiprobe cryoablation synergy using heat source boundary, International Journal of Heat and Mass Transfer, 147, 2020. Crossref
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Zherdev A., Tsiganov D., Burkov I., Pushkarev A., Shakurov A., Testing the cooling capacity of two small-size microthrottle heat exchange devices, XLIII ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration, 2171, 2019. Crossref
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Burkov Ivan A., Pushkarev Aleksandr V., Shakurov Alexey V., Tsiganov Dmitry I., Zherdev Anatoly A., Shakurov A.V., Numerical thermal simulation of cryoexposure using Ansys, MATEC Web of Conferences, 324, 2020. Crossref
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Agafonkina I. V., Belozerov A. G., Berezovsky Yu. M., Korolev I. A., Pushkarev A. V., Tsiganov D. I., Shakurov A. V., Zherdev A. A., Thermal Properties of Biological Tissue Gel-Phantoms in a Wide Low-Temperature Range, Journal of Engineering Physics and Thermophysics, 94, 3, 2021. Crossref
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Pushkarev A V, Andreev N A, Study of low-temperature exposure on biotissue using an elongated cryoapplicator, Journal of Physics: Conference Series, 2103, 1, 2021. Crossref
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Pushkarev A V, Heat transfer in cryosurgical device with an extended applicator, Journal of Physics: Conference Series, 1683, 2, 2020. Crossref
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Burkov I.A., Pushkarev A.V., Ryabikin S.S., Shakurov A.V., Tsiganov D.I., Zherdev A.A., Numerical simulation of controlled precision cryosurgery using argon Joule–Thomson and liquid nitrogen evaporation cryoprobes, International Journal of Refrigeration, 133, 2022. Crossref