High-Resolution T1-Weighted MRI with Motion Correction

Data were acquired at the Athinoula A. Martinos Imaging Center at MIT. Before the MRI, participants acclimated to the scanning environment and practiced staying still by undergoing a ‘mock scan’. Scanning was performed using a Siemens MAGNETOM Trio Tim 3 T MRI scanner with a 32-channel coil. A whole-brain, high-resolution, T1-weighted multi-echo structural scan (MPRAGE) was collected (ECS acquisition parameters: TR = 2530 ms, TE = 1.64 ms/3.5 ms/5.36 ms/7.22 ms, flip angle = 7°, voxel size = 1 mm isotropic, matrix size = 192 × 192, 176 sagittal slices, FOV = 192 mm; AS: TR = 2530 ms; TE = 1.64 ms/3.44 ms/5.24 ms/7.04 ms; flip angle = 7°; resolution = 1 mm isotropic). This sequence was optimized for participants with high motion (Tisdall et al., 2012 (link)). This sequence included the volumetric navigators (vNavs) prospective motion correction system, which tracked the subject's head motion and corrected the imaging coordinates to follow the subject's motion in real time (Tisdall et al., 2012 (link)). This method has been shown, when using a very similar scanning protocol, to significantly reduce motion-induced biases in cortical thickness measures (Tisdall et al., 2016 (link)).

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Leonard J.A., Romeo R.R., Park A.T., Takada M.E., Robinson S.T., Grotzinger H., Last B.S., Finn A.S., Gabrieli J.D, & Mackey A.P. (2019). Associations between cortical thickness and reasoning differ by socioeconomic status in development. Developmental Cognitive Neuroscience, 36, 100641.

Publication 2019

MAGNETOM Trio Tim 3 T

Brain Cortical Echo Head Ms ms Tim 3 Trio

Corresponding Organization : McGovern Institute for Brain Research

Other organizations : Harvard University, University of Toronto

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Variable analysis

independent variables

None explicitly mentioned

dependent variables

Cortical thickness measures

control variables

Scanning environment (participants acclimated to the scanning environment and practiced staying still by undergoing a 'mock scan')
MRI scanner (Siemens MAGNETOM Trio Tim 3 T MRI scanner with a 32-channel coil)
Imaging sequence (whole-brain, high-resolution, T1-weighted multi-echo structural scan (MPRAGE))
Imaging parameters (TR = 2530 ms, TE = 1.64 ms/3.5 ms/5.36 ms/7.22 ms, flip angle = 7°, voxel size = 1 mm isotropic, matrix size = 192 × 192, 176 sagittal slices, FOV = 192 mm)
Motion correction (volumetric navigators (vNavs) prospective motion correction system)

controls

Positive control: None mentioned
Negative control: None mentioned

Annotations

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