1.5 t avanto mobile mri system

Manufactured by Siemens

The 1.5 T Avanto Mobile MRI System is a magnetic resonance imaging (MRI) device designed for mobile applications. It features a 1.5 Tesla superconducting magnet and provides high-quality imaging capabilities. The system is intended for use in various clinical settings, including hospitals and clinics.

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Lab products found in correlation

12 channel head coil, by Siemens (1 mentions)

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Avanto 1.5 T system Siemens 1.5-T Avanto 1.5 T MRI Siemens 1.5 Avanto System Avanto MRI system Avanto system

5 protocols using 1.5 t avanto mobile mri system

Mobile MRI Scanning of Correctional Facilities

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Data were collected on the correctional facility grounds using the Mind Research Network's Siemens 1.5 T Avanto Mobile MRI System with advanced SQ gradients (max slew rate = 200/T/m/s, 345 T/m/s vector summation, rise time 200 ms) and a 12-element head coil. The mobile scanner was transported to each facility and every participant was scanned using the same system. High-resolution (1 × 1 × 1.33 mm) whole brain multi-echo T1 structural scans (TR = 2530 ms, TE = 1.64, 3.5, 5.36, 7.22 ms, 128 interleaved sagittal slices, no gap, 7° flip angle, and 24-cm FOV) were obtained for each participant.

Miskovich T.A., Anderson N.E., Harenski C.L., Harenski K.A., Baskin-Sommers A.R., Larson C.L., Newman J.P., Hanson J.L., Stout D.M., Koenigs M., Shollenbarger S.G., Lisdahl K.M., Decety J., Kosson D.S, & Kiehl K.A. (2018). Abnormal cortical gyrification in criminal psychopathy. NeuroImage : Clinical, 19, 876-882.

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Resting-State fMRI in Correctional Facility

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All MRI data were acquired using the Mind Research Network’s Siemens 1.5 T Avanto Mobile MRI System on correctional facility grounds. Rest-state functional images were collected while subjects passively viewed a fixation cross (T2*-weighted gradient-echo echoplanar functional images: TR=2000 ms, TE=39 ms, flip angle=75°, FOV=24×24 cm, matrix=64×64, slice thickness=4 mm, gap=1 mm, voxel size=3.75×3.75×5 mm, 27 sequential axial oblique slices). Rest-state scans lasted 5.5 minutes (158 volumes). A high-resolution T1-weighted structural image was acquired using a four-echo MPRAGE sequence (TR=2530; TE=1.64, 3.5, 5.36, 7.22 ms; flip angle=7°, FOV=256×256 mm, matrix=128×128, slice thickness=1.33 mm, no gap, voxel size=1×1×1.33 mm, 128 interleaved sagittal slices). All four echos were averaged into a single high-resolution image for subsequent analysis.

Motzkin J.C., Baskin‐Sommers A., Newman J.P., Kiehl K.A, & Koenigs M. (2014). Neural correlates of substance abuse: Reduced functional connectivity between areas underlying reward and cognitive control. Human Brain Mapping, 35(9), 4282-4292.

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Neuroimaging in Correctional Facilities

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MR images were acquired on correctional facility grounds, using a Siemens 1.5 T Avanto Mobile MRI System with advanced SQ gradients (max slew rate 200 T/m/s, 346 T/m/s vector summation, rise time 200 μs) and equipped with a 12-channel head coil. Head motion was limited via padding and restraint.
Prior to all functional scans, a T1-weighted structural image was captured for each participant using a four-echo MPRAGE sequence (TR = 2530ms, TE = 1.64, 3.5, 5.36, and 7.22 ms; flip angle = 7°, FOV = 256 × 256 mm, matrix = 128×128, slice thickness = 1.33 mm, no gap, voxel size = 1.0 × 1.0 × 1.33 mm, 128 interleaved sagittal slices per echo), with the four echoes averaged into a single high-resolution image.

Hosking J.G., Kastman E.K., Dorfman H.M., Samanez-Larkin G.R., Baskin-Sommers A., Kiehl K.A., Newman J.P, & Buckholtz J.W. (2017). Disrupted Prefrontal Regulation of Striatal Subjective Value Signals in Psychopathy. Neuron, 95(1), 221-231.e4.

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High-resolution T1-weighted Structural MRI Acquisition and Preprocessing

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MRI data were acquired with the Mind Research Network’s Siemens 1.5T Avanto Mobile MRI System equipped with a 12-channel head coil. All participants underwent scanning on correctional facility grounds. A high-resolution T1-weighted structural image was acquired for each subject using a four-echo magnetization-prepared rapid gradient-echo sequence (TR=2530 ms; TE=1.64, 3.5, 5.36 and 7.22 ms; flip angle=7°; FOV=256x256 mm²; matrix=128x128; slice thickness=1.33 mm; no gap; voxel size=1x1x1.33 mm³;128 interleaved sagittal slices). All four echoes were averaged into a single high-resolution image(22 (link)). Preprocessing and analyses of structural MRI data were conducted in Statistical Parametric Mapping software (SPM12; http://www.fil.ion.ucl.ac.uk/spm). Preprocessing consisted of manual realignment of T1 images; segmentation into gray matter, white matter, and cerebrospinal fluid; normalization to Montreal Neurological Institute (MNI)-152 space; modulation after normalization to preserve volume; and smoothing with an 8mm full-width at half-maximum (FWHM) Gaussian kernel(23 (link)).

Korponay C., Kosson D.S., Decety J., Kiehl K.A, & Koenigs M. (2017). Brain Volume Correlates with Duration of Abstinence from Substance Abuse in a Region-Specific and Substance-Specific Manner. Biological psychiatry. Cognitive neuroscience and neuroimaging, 2(7), 626-635.

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Whole Brain Imaging with Advanced MRI

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Whole brain imaging was conducted using a Siemens 1.5T Avanto Mobile MRI system with advanced SQ gradients (max slew rate 200 T/m/s, 346 T/m/s vector summation, rise time 200 μs) equipped with a 12-element head coil. Functional images were collected (TR = 2 s; TE = 39 ms; flip angle = 75°; FOV = 24 cm × 24 cm; matrix = 64 × 64; in plane resolution = 3.75 mm × 3.75 mm; slice thickness = 5 mm; 27 axial oblique slices) during the experiment. The conditioning run consisted of one hundred fifty whole brain scans. High resolution MPRAGE images (1 mm slices) were collected in a sagittal orientation (flip angle = 8°; FOV = 24 cm) and served as an anatomical map for the functional images.

Schultz D.H., Balderston N.L., Baskin-Sommers A.R., Larson C.L, & Helmstetter F.J. (2016). Psychopaths Show Enhanced Amygdala Activation during Fear Conditioning. Frontiers in Psychology, 7, 348.

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