Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice

Cihan Göksu; Klaus Scheffler; Frodi Gregersen; Hasan H Eroğlu; Rahel Heule; Hartwig R. Siebner; L.G. Hanson; Axel Thielscher

Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice

Cihan Göksu, Klaus Scheffler, Frodi Gregersen, Hasan H Eroğlu, Rahel Heule, Hartwig R. Siebner, L.G. Hanson, Axel Thielscher

Abstract

Exact knowledge of current distributions induced by transcranial electrical stimulation (TES) in the brain is important for effective clinical use of TES. MRCDI uses MRI to measure the TES-induced magnetic fields for estimating the underlying current flow distributions. The estimation methods can benefit from highly sensitive volume MRCDI measurements at a high spatial resolution. Here, we advanced our 2D spoiled gradient-echo-based MRCDI method for a sparse volume acquisition by using simultaneous-multi-slice (SMS) acquisition. Our SMS strategy demonstrated 25% improvement in noise floors against 2D. We test the performance of our methods by phantom and human in-vivo experiments using cable-loop currents.

Original language	English
Publication date	2022
Number of pages	1
Publication status	Published - 2022
Event	Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting - London, Englnd, UK Duration: 7 May 2022 → 12 May 2022 https://www.ismrm.org/22m/

Conference

Conference	Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting
Location	London, Englnd, UK
Period	07/05/2022 → 12/05/2022
Internet address	https://www.ismrm.org/22m/

Cite this

Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice. / Göksu, Cihan; Scheffler, Klaus; Gregersen, Frodi et al.

2022. 1-1 Abstract from Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting.

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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title = "Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice",

abstract = "Exact knowledge of current distributions induced by transcranial electrical stimulation (TES) in the brain is important for effective clinical use of TES. MRCDI uses MRI to measure the TES-induced magnetic fields for estimating the underlying current flow distributions. The estimation methods can benefit from highly sensitive volume MRCDI measurements at a high spatial resolution. Here, we advanced our 2D spoiled gradient-echo-based MRCDI method for a sparse volume acquisition by using simultaneous-multi-slice (SMS) acquisition. Our SMS strategy demonstrated 25% improvement in noise floors against 2D. We test the performance of our methods by phantom and human in-vivo experiments using cable-loop currents.",

author = "Cihan G{\"o}ksu and Klaus Scheffler and Frodi Gregersen and Eroğlu, {Hasan H} and Rahel Heule and Siebner, {Hartwig R.} and L.G. Hanson and Axel Thielscher",

year = "2022",

language = "English",

pages = "1--1",

note = "Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting, ISMRM ; Conference date: 07-05-2022 Through 12-05-2022",

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TY - ABST

T1 - Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice

AU - Göksu, Cihan

AU - Scheffler, Klaus

AU - Gregersen, Frodi

AU - Eroğlu, Hasan H

AU - Heule, Rahel

AU - Siebner, Hartwig R.

AU - Hanson, L.G.

AU - Thielscher, Axel

PY - 2022

Y1 - 2022

N2 - Exact knowledge of current distributions induced by transcranial electrical stimulation (TES) in the brain is important for effective clinical use of TES. MRCDI uses MRI to measure the TES-induced magnetic fields for estimating the underlying current flow distributions. The estimation methods can benefit from highly sensitive volume MRCDI measurements at a high spatial resolution. Here, we advanced our 2D spoiled gradient-echo-based MRCDI method for a sparse volume acquisition by using simultaneous-multi-slice (SMS) acquisition. Our SMS strategy demonstrated 25% improvement in noise floors against 2D. We test the performance of our methods by phantom and human in-vivo experiments using cable-loop currents.

AB - Exact knowledge of current distributions induced by transcranial electrical stimulation (TES) in the brain is important for effective clinical use of TES. MRCDI uses MRI to measure the TES-induced magnetic fields for estimating the underlying current flow distributions. The estimation methods can benefit from highly sensitive volume MRCDI measurements at a high spatial resolution. Here, we advanced our 2D spoiled gradient-echo-based MRCDI method for a sparse volume acquisition by using simultaneous-multi-slice (SMS) acquisition. Our SMS strategy demonstrated 25% improvement in noise floors against 2D. We test the performance of our methods by phantom and human in-vivo experiments using cable-loop currents.

M3 - Conference abstract for conference

SP - 1

EP - 1

T2 - Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting

Y2 - 7 May 2022 through 12 May 2022

ER -

Mapping of weak current-induced magnetic fields in a 3D volume of the human brain at high resolution: 2D vs. Simultaneous multi slice

Abstract

Conference

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