3D imaging of magnetic particles using the 7-channel magnetoencephalography device without pre-magnetization or displacement of the sample

Polikarpov, M.I.; Ustinin, M.N.; Рыкунов, С.Д.; Yurenya, A. Y.; Naurzakov, S. P.; Grebenkin, A.P.; Panchenko, V. Ya.

doi:10.1016/j.jmmm.2016.10.055

Cited by 6 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Анализ данных осуществлялся с помощью метода функциональной томографии, развитого в работах [19][20][21][22].…”

Section: метод функциональной томографии сложных систем на основе мноunclassified

“…В данной работе метод функциональной томографии сложных систем по многоканальным временным рядам [19][20][21][22] применен к анализу данных магнитокардиографии. Найдено, что эти данные также могут быть преобразованы в трехмерные массивы, содержащие информацию о расположении и мощности источников магнитных полей.…”

Section: заключениеunclassified

“…Метод был предложен в [19] для изучения различных сложных систем и был применен к исследованию спонтанной активности головного мозга в [20,21]. В работе [22] с помощью этого метода решалась задача по локализации магнитных наночастиц. В настоящей работе этот метод был использован для реконструкции функциональной структуры сердца по данным, полученным с помощью девятиканального магнитокардиографа [23].…”

Section: Introductionunclassified

See 2 more Smart Citations

Reconstruction of the Human Heart Functional Structure Based On a Few-Channel Magnetocardiogram

Ustinin¹,

Maslennikov²,

Рыкунов³

et al. 2018

Math.Biol.Bioinf.

Self Cite

View full text Add to dashboard Cite

The new method of magnetocardiography data analysis is proposed. The method is based on the Fourier transform of prolonged time series and on the massive inverse problem solution for all spectral components. Magnetocardiograms (MCG) were registered in the plane above the subject’s chest in the nodes of the “rectangular” (6×6) grid with the step 40 mm at usual laboratory conditions without any additional magnetic shielding. The 9-channel MCG-system “MAG-SCAN-09” with dc-SQUID-based axial second order gradiometers was used. The MCG-recording was performed in four positions of investigated subjects under the instrument to get all 36 MCGs. For each of four positions of the MCG-recording the partial functional tomogram was calculated, which is the spatial distribution of elementary magnetic dipoles, observed in this position. The complete functional tomogram of the thorax was obtained by the summation of four partial functional tomograms, containing the data about the same object, observed from various positions. Filtering and contrasting of the complete functional tomogram made it possible to extract the 3D-object, representing the functional structure of the heart. The method was used for five subjects and provided consistent results. It is possible to use this method in cardiography, because the functional tomogram contains all measured information about individual heart.

show abstract

Section: метод функциональной томографии сложных систем на основе мноunclassified

Section: заключениеunclassified

Section: Introductionunclassified

See 1 more Smart Citation

Reconstruction of the Human Heart Functional Structure Based On a Few-Channel Magnetocardiogram

Ustinin¹,

Maslennikov²,

Рыкунов³

et al. 2018

Math.Biol.Bioinf.

Self Cite

View full text Add to dashboard Cite

show abstract

Study of anisotropy of magnetic noise, generated by magnetic particles in geomagnetic field

Поликарпов

Ustinin

Рыкунов

et al. 2019

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Noninvasive muscle activity imaging using magnetography

Llinás

Ustinin

Рыкунов

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

A spectroscopic paradigm has been developed that allows the magnetic field emissions generated by the electrical activity in the human body to be imaged in real time. The growing significance of imaging modalities in biology is evident by the almost exponential increase of their use in research, from the molecular to the ecological level. The method of analysis described here allows totally noninvasive imaging of muscular activity (heart, somatic musculature). Such imaging can be obtained without additional methodological steps such as the use of contrast media.

show abstract

3D imaging of magnetic particles using the 7-channel magnetoencephalography device without pre-magnetization or displacement of the sample

Cited by 6 publications

References 11 publications

Reconstruction of the Human Heart Functional Structure Based On a Few-Channel Magnetocardiogram

Reconstruction of the Human Heart Functional Structure Based On a Few-Channel Magnetocardiogram

Study of anisotropy of magnetic noise, generated by magnetic particles in geomagnetic field

Noninvasive muscle activity imaging using magnetography

Contact Info

Product

Resources

About