Multimodal Brain Imaging Protocol for Task-Related fMRI and rTMS Neuronavigation

Scans were acquired using a 3 T scanner (Verio, Siemens) with a 32-channel head coil. To relate the blood oxygenation level-dependent (BOLD) signal acquired with fMRI to anatomic brain structures and for rTMS neuronavigation a structural T1-weighted image was acquired [MPRAGE; repetition time (TR), 1900 ms; echo time (TE), 2.32 ms; flip angle, 9°; in-plane resolution, 0.89 × 0.89 mm; slice thickness, 0.9 mm; field of view (FOV), 256 mm). To assess task-related neural activity, regional BOLD signal changes were measured using a T2*-weighted EPI sequence (TR, 1650 ms; TE, 26 ms; flip angle, 74°). A total of 1459 volumes with 32 slices in ascending order were acquired per session (in-plane resolution, 3 × 3 mm; FOV, 192 mm). Axial slices were arranged parallel to the bicommissural line. Respiration and pulse were obtained with a pneumatic thoracic belt and pulse oximeter, respectively.

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Lohse A., Løkkegaard A., Siebner H.R, & Meder D. (2023). Linking Impulsivity to Activity Levels in Pre-Supplementary Motor Area during Sequential Gambling. The Journal of Neuroscience, 43(8), 1414-1421.

Publication 2023

Blood Brain structures Echo Fmri Head Neural Neuronavigation Pulse Respiration Rtms Scans

Corresponding Organization :

Other organizations : Copenhagen University Hospital, Bispebjerg Hospital, Hvidovre Hospital, University of Copenhagen

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Variable analysis

independent variables

None explicitly mentioned

dependent variables

Regional BOLD (blood oxygen level-dependent) signal changes measured using a T2*-weighted EPI sequence

control variables

3 T scanner (Verio, Siemens)
32-channel head coil
MPRAGE structural T1-weighted image (repetition time (TR), 1900 ms; echo time (TE), 2.32 ms; flip angle, 9°; in-plane resolution, 0.89 × 0.89 mm; slice thickness, 0.9 mm; field of view (FOV), 256 mm)
T2*-weighted EPI sequence (TR, 1650 ms; TE, 26 ms; flip angle, 74°; in-plane resolution, 3 × 3 mm; FOV, 192 mm; 1459 volumes with 32 slices in ascending order)
Respiration and pulse monitoring (pneumatic thoracic belt and pulse oximeter)

controls

None explicitly mentioned

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