Whole-Brain fMRI Acquisition Using 3T MRI

Imaging was performed on a Siemens TIM Trio whole body 3T MRI scanner (Siemens Corporation, Erlangen, Germany) using a 12-channel phased array head coil. During the cognitive challenge tasks, 40 contiguous coronal slices were acquired from each participant, providing whole brain coverage (5 mm thick) and images were collected every 3 seconds using a single shot, gradient pulse echo sequence (TR = 3000 ms; TE = 30 ms, flip angle = 90°, with a 20 cm field of view and a 64 × 64 acquisition matrix; in plane resolution 3.125 × 3.125 × 3.125 mm). For the MSIT, a total of 132 images per slice were collected, while for the Stroop task, a total of 50 images per slice were collected in order to ensure comparability of tasks with previous studies [11 (link),32 (link)].

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Gruber S.A., Sagar K.A., Dahlgren M.K., Gonenç A., Conn N.A., Winer J.P., Penetar D, & Lukas S.E. (2015). Citicoline Treatment Improves Measures of Impulsivity and Task Performance in Chronic Marijuana Smokers: A Pilot BOLD fMRI Study. International journal of neurology and neurotherapy, 2(3), 1-8.

Publication 2015

TIM Trio whole body 3T MRI scanner

Body Brain Cognitive Echo Head Pulse Seconds Stroop task Trio

Corresponding Organization :

Other organizations : McLean Hospital, Harvard University

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Variable analysis

independent variables

Cognitive challenge tasks (MSIT and Stroop task)

dependent variables

Whole brain coverage images collected every 3 seconds using a single shot, gradient pulse echo sequence

control variables

Siemens TIM Trio whole body 3T MRI scanner
12-channel phased array head coil
40 contiguous coronal slices (5 mm thick) providing whole brain coverage
TR = 3000 ms, TE = 30 ms, flip angle = 90°, 20 cm field of view, 64 × 64 acquisition matrix, in-plane resolution 3.125 × 3.125 × 3.125 mm
132 images per slice for MSIT and 50 images per slice for Stroop task

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