Possibilities of high-field magnetic resonance imaging (3 T) in fetal visualization using meta device
A. A. Borshevetskaya,
V. S. Egorova,
L. E. Galyautdinova,
I. A. Mashchenko,
A. Yu. Efimtsev,
A. V. Shchelokova,
G E. Trufanov,
V. M. Puchnin,
E. A. Koreshin,
A. V. Kalugina https://doi.org/10.18705/2311-4495-2023-10-2-123-129
Abstract
Background. Fetal and extra fetal diagnostics is currently performed using 3 Tesla magnetic-resonance imaging scanners. Examination is more informative during the third trimester of pregnancy, when fetal movements are less significant. 3 Tesla MR-images demonstrate better characteristics than 1,5 Tesla ones, however, there is a risk of heating the patient during scanning, which is especially dangerous for pregnant women.
Objective. The aim of the study is to improve fetal and extrafetal structures visualization by means of developed metamaterial pad (metadevice).
Design and methods. In the study, a metadevice was considered to improve fetal and extrafetal imaging in a field with magnetic induction of 3 T. 12 pregnant women between 29 and 39 weeks gestation (33,4 ± 4,8 weeks) were examined, standart magnetic resonance images of Single Shot Turbo (SST)/Fast Spin Echo(FSE)) were obtained. Standart abdomen coil was used to receive examination data. Metadevice and the coil were placed on the center of the examined area. The images were evaluated by radiologists on a 5-point Likert scale.
Results of metadevice testing showed diagnostic quality improvement, increase in radio-frequency magnetic field homogeneity, decreased SAR value and reduction in body heating effect during MR-scanning.
Conclusion. Metadevice-assisted MRI can lower heating risks, reduce dielectric artifacts and improve imaging quality of the fetus and extrafetal structures.
About the Authors
A. A. Borshevetskaya
Almazov National Medical Research Centre
Russian Federation
Russian Federation
Anastasia A. Borshevetskaya, Resident, Department of Radiation Diagnostics and Medical Imaging with Clinic, Institute of Medical Education
Akkuratova str., 2, Saint Petersburg, 197341
V. S. Egorova
Almazov National Medical Research Centre
Veronika S. Egorova, Resident, Department of Radiation Diagnostics and Medical Imaging with Clinic, Institute of Medical Education
Saint Petersburg
L. E. Galyautdinova
Almazov National Medical Research Centre
Lina E. Galyautdinova, Resident, Department of Radiation Diagnostics and Medical Imaging with Clinic, Institute of Medical Education
Saint Petersburg
I. A. Mashchenko
Almazov National Medical Research Centre
Irina A. Mashchenko, MD, Associate Professor, Department of Radiation Diagnostics and Medical Imaging with a clinic, Institute of Medical Education, Leading Researcher, Research Group of Radiation Methods in Perinatology and Pediatrics
Saint Petersburg
A. Yu. Efimtsev
Almazov National Medical Research Centre
Aleksandr Yu. Efimtsev, D.M.Sc., Associate Professor, Department of Radiation Diagnostics and Medical Imaging with Clinic, Institute of Medical Education, Leading Researcher, Research Laboratory of Radiation Imaging
Saint Petersburg
A. V. Shchelokova
ITMO University
Alena V. Shchelokova, PhD, Assistant Professor, Faculty of Physics
Saint Petersburg
G E. Trufanov
Almazov National Medical Research Centre
Gennady E. Trufanov, D.M.Sc., Professor, Chief Researcher of the Research Institute of Radiation Diagnostics, Head of the Department of Radiation Diagnostics and Medical Imaging with Clinic, Institute of Medical Education
Saint Petersburg
V. M. Puchnin
ITMO University
Viktor M. Puchnin, PhD student, Faculty of Physics, engineer
Saint Petersburg
E. A. Koreshin
ITMO University
Evgeniy A. Koreshin, PhD student, Faculty of Physics, engineer
Saint Petersburg
A. V. Kalugina
ITMO University
Anna V. Kalugina, Master student, Faculty of Technology Management and Innovation
Saint Petersburg
References
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Review
For citations:
Borshevetskaya A.A., Egorova V.S., Galyautdinova L.E., Mashchenko I.A., Efimtsev A.Yu., Shchelokova A.V., Trufanov G.E., Puchnin V.M., Koreshin E.A., Kalugina A.V. Possibilities of high-field magnetic resonance imaging (3 T) in fetal visualization using meta device. Translational Medicine. 2023;10(2):123-129. (In Russ.) https://doi.org/10.18705/2311-4495-2023-10-2-123-129
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