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Numerical Optimization of Electrically Focal Transcranial Magnetic Stimulation Coils (CROSBI ID 614456)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Perković, Igor ; Weise, Konstantin ; Poljak, Dragan ; Brauer, Hartmut Numerical Optimization of Electrically Focal Transcranial Magnetic Stimulation Coils // 2014 International Conference on Software, Telecommunications and Computer Networks. Split: Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2014

Podaci o odgovornosti

Perković, Igor ; Weise, Konstantin ; Poljak, Dragan ; Brauer, Hartmut

engleski

Numerical Optimization of Electrically Focal Transcranial Magnetic Stimulation Coils

The objective of this paper is to numerically investigate novel coil designs that have an improved electric field focality compared to the standard figure-of-eight coil and other variations on such a design. The induced electric field was calculated on homogeneous conducting sphere representing a simplified head model. In the presented models, skin effect is neglected, due to the low frequencies in transcranial magnetic stimulation. Field focality is described by an equivalent area where the field drops below 50% of its maximal value. In order to provide comparison, the coils were designed to have the same or similar dimensions as the figure-of-eight coil. The electric field of the proposed coils is more focal with values from 5.5 cm2 to 9.5 cm2. However, the penetration depth of these coils is smaller compared to traditional figure-of-8 coils, ranging from 0.9 cm to 1.2 cm. It is observed, that for every proposed coil design an improvement in focality is paid by penetration depth and vice versa. In this way, the application of smaller coils and windings improves focality but decreases maximum induction field and penetration depth.

numerical optimization; transcranial magnetic stimulation; novel coil design; electric field focality

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Podaci o prilogu

2014.

objavljeno

Podaci o matičnoj publikaciji

2014 International Conference on Software, Telecommunications and Computer Networks

Split: Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu

978-953-290-051-4

Podaci o skupu

SoftCOM 2014 22nd International Conference of Software, Telecommunications and Computer Networks

predavanje

01.01.2014-01.01.2014

Split, Hrvatska

Povezanost rada

Elektrotehnika