Possible effects of dielectrophoretic fields in the brains of MRI operators and MS patients: a radiologically isolated syndrome evaluation

Frequent use of magnetic resonance imaging (MRI) devices, which are major contributors in understandinghealth problems in the human body, is a subject that needs to be taken into consideration both for patients and foroperators who are constantly in the vicinity of devices. In this context, electromagnetic impact assessment of an MRIdevice was performed at the point where the patient entered the device. Dielectrophoretic fields induced by radiofrequency (RF) coils of an MRI scanner on male and female operator brain models were computed by using dispersiveelectrical medium parameters. The main cause of induced secondary dielectrophoretic fields by the RF coils of the MRIscanner is the veins modelled as monopole antennas on the lateral ventricle. The results explain that the dielectrophoreticfields near the veins on the ependymal surfaces are the main cause of Dawson fingers that may develop in the brainsof multiple sclerosis (MS) patients and people at risk of the disease. Due to the use of the phantom results and thedispersive values of the electrical medium parameters, the results can be said to be close to the actual values and reliable.Therefore, the study will contribute to the confirmation of the hypotheses, developed by the author from a differentperspective, related to the etiology of MS and will provide an accurate understanding of the concept of radiologicallyisolated syndrome. Everyone, including MRI designers, neurologists, radiologists, operators, and MS patients, can findany of the original information about MS that they need.

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