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3 t mri

Manufactured by Siemens
Sourced in Germany

The Siemens 3 T MRI is a magnetic resonance imaging system that produces high-quality images of the body's internal structures. It operates at a magnetic field strength of 3 Tesla, which provides enhanced image resolution and signal-to-noise ratio compared to lower field strengths. The system is designed for a wide range of clinical applications and can be used for diagnostic imaging, treatment planning, and research purposes.

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2 protocols using 3 t mri

1

Neuroimaging and Substance Use Screening

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All participants completed two days of testing. Each day participants provided expired-air samples to screen for recent alcohol use (AlcoTest 7110 MKIII C, Draeger Safety Inc., Durango, CO) and urine samples to screen for recent drug use (THC metabolite, cocaine, benzodiazepines, opiates, and amphetamines; Panel/Dip Drugs of Abuse Testing Device, Redwood Biotech, Santa Rosa, CA). Participants in the user group were instructed not to smoke marijuana after midnight the night before testing sessions. On the first visit, participants completed questionnaires and interviews to verify study eligibility and obtain demographic and other pieces of information. On the second visit, participants underwent magnetic resonance imaging (MRI) on a research-dedicated Siemens 3 T MRI (Siemens, Munich, Germany) with a 12-channel head coil at the UTHSCA Research Imaging Institute.
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2

Resting-State fMRI Protocol with Quality Control

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Neuroimaging data were acquired at the Brown University MRI Research Facility using a Siemens 3T MRI (Siemens, Erlangen, Germany) equipped with a 32-channel head coil. Imaging acquisition included high-resolution (1 mm3) anatomical images and eight minutes of standard resting state echoplanar imaging. Neuroimaging acquisition, preprocessing, quality control, and motion (used in first- and second-level analyses) are described in Supplemental Information. MRI data processing used the CONN Functional Toolbox (47 (link)) unless otherwise indicated.
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