Apparatus for Short-Wave Inductothermy “Magnetotherm”

Quantitative criterion of the spatial inhomogeneity of the electromagnetic field in the near-field zone of a loop radiator

“…Since RFH of malignant neoplasms is performed in the near-field zone of radiation at a distance commensurable with the size of the antenna of an applicator, to estimate the distributions of EMFs in space, it makes sense to use the quasi-static approximation, for example, on the basis of the Biot-Savart algorithm under the assumption that space is isotropic. Recall that, in experimental investigations of SI EMFs, in particular, with the help of the apparatus "Magnetotherm," the curvature of the loop of an applicator was changed [2,3]. Let us consider two applicators, namely, with a rectilinear profile (RPA) and in the form of an arc of a circle (ACA).…”

“…In the combined treatment of oncological patients, it is assumed that the heating of a tumor should be uniform and reach no less than 43°C in order that each malignant cell or elementary volume of the tumor absorbed an identical doze from the applied external physical factor. However, further experiments and clinical observations at the National Cancer Institute (Kyiv, Ukraine) showed that, in using spatially inhomogeneous (SI) fields providing moderate RFH (tissues are heated to at the most 1.5°C) against the background of carrying out of the chemotherapeutic action, the results of therapy are often more positive [2,3]. An appreciable effect of SI electromagnetic fields (EMFs) on biological systems is also mentioned in [4][5][6][7][8].…”

The effect of the inhomogeneous magnetic fields on the antitumor activity of magnetic nanotherapy

“…It consist of the curved loop, magnetic flux dipoles (diameter 2 mm, height 40 mm and magnet pole separation 3 mm), permanent magnet and holder of the magnetic flux dipoles from dielectric [10]. To generate alternating electromagnetic field producing eddy currents in tumor with MNC the first prototype of the apparatus for medical treatment called "Magnetotherm" (Radmir, Ukraine) was used [11]. The frequency of electromagnetic irradiation (EI) was 70 MHz with an initial power of 75 W. The animal tumors were irradiated locally by magnetic-dipole applicator (Fig.…”

Changes in the spontaneous luminescence of aqueous solutions under exposure to radio frequency electromagnetic radiation

“…Коллективом авторов Национального института рака (Киев, Украина) установлено, что при сочетанном синергетическом действии химиоили лучевой терапии и электромагнитного поля (ЭМП) радиочастотного диапазона, вызывающего повышение температуры опухоли в среднем не более чем на 0,5…1,5 С и имеющего пространственно-неоднородное (ПН) распределение, в значительной степени повышается эффективность лечения злокачественных опухолей, по сравнению с влиянием относительно равномерного поля [1][2][3][4].…”