12 channel phased array whole head coil

Manufactured by Siemens

Sourced in Germany

The 12-channel phased-array whole-head coil is a laboratory equipment designed for use in magnetic resonance imaging (MRI) systems. It is a specialized radio frequency (RF) coil that is used to transmit and receive the electromagnetic signals necessary for the acquisition of MRI images of the entire human head.

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Lab products found in correlation

Triotim 3t scanner, by Siemens (3 mentions) Tim trio, by Siemens (1 mentions)

Spelling variants of this product

12-channel head coil (598 citations) 12-channel phased-array head coil (73 citations) 12-channel coil (11 citations) 12-channel array head coil (10 citations) 12-channel array coil (4 citations) 12-channel phased array head (2 citations) 12‐channel phased‐array coil (2 citations)

4 protocols using 12 channel phased array whole head coil

Multimodal Brain Imaging Protocol

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Data were acquired using a 3-Tesla Siemens Tim Trio scanner (Siemens, Erlangen, Germany) with a 12-channel phased array whole-head coil. 3D T1-weighted magnetization prepared rapid acquisition gradient echo (MP-RAGE) anatomical images (TR = 2530 ms, TE = 3.39 ms, flip angle = 7°, 1.33 mm slice thickness, 1.3×1 mm² in plane resolution) and T2* weighted EPI sequence functional images (TR = 2.0 sec, TE = 30 ms, flip angle = 90°, 3 mm³ resolution, 300 timepoints per run with 3 runs, tilt = 22° upward from AC-PC line to minimize distortion and signal dropout, interleaved acquisition, using prospective acquisition correction) (Thesen, et al., 2000 (link)) with full brain coverage were collected.

Manning J., Hedden T., Wickens N., Whitfield-Gabrieli S., Prelec D, & Gabrieli J.D. (2014). Personality Influences Temporal Discounting Preferences: Behavioral and Brain Evidence. NeuroImage, 98, 42-49.

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Hippocampal Volume Measurement Protocol

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Participants underwent MRI on a Siemens Trio-TIM 3 T scanner equipped with a 12-channel phased-array whole-head coil. High-resolution 3D T1-weighted multi-echo magnetization-prepared, rapid acquisition gradient echo anatomical images were collected with the following parameters: repetition time=2200ms; multi-echo echo times=1.54ms, 3.36ms, 5.18 ms, and 7 ms; flip angle 7°, 4x acceleration, 1.2×1.2×1.2 mm voxels. Region of interest (ROI) labeling was implemented using FreeSurfer v5.1. Hippocampus volume (HV) was collapsed across hemispheres and adjusted for estimated total intracranial volume (ICV): Adjusted HV (aHV) = raw HV—b (ICV —mean ICV), with b reflecting the regression coefficient when HV is regressed against ICV.

Papp K.V., Amariglio R.E., Mormino E., Hedden T., Dekhytar M., Johnson K.A., Sperling R.A, & Rentz D.M. (2015). Free and Cued Memory in relation to Biomarker-Defined Abnormalities in Clinically Normal Older Adults and Those at Risk for Alzheimer’s Disease. Neuropsychologia, 73, 169-175.

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Hippocampal Volumes and Structural MRI

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MRI was completed on a Siemens Trio-TIM 3T scanner with a 12-channel phased-array whole-head coil. Structural T1 weighted images were acquired as magnetization-prepared rapid gradient-echo (MPRAGE) with the following acquisition parameters: TR/TE/TI = 2300/2.95/900ms, flip angle = 9°, 1.1x1.1x1.2mm resolution, 2X (GRAPPA) acceleration. Hippocampal volumes were collapsed across hemispheres and intracranial volume (ICV) controlled using: raw HV—b (ICV —mean ICV), b = unstandardized coefficient when HV is regressed against ICV. Region of interest labeling was derived using FreeSurfer v5.1 (Fischl, 2012 (link)). MRI was collected at baseline and 3-year follow-up.

Dekhtyar M., Papp K.V., Buckley R., Jacobs H.I., Schultz A.P., Johnson K.A., Sperling R.A, & Rentz D.M. (2017). Neuroimaging Markers Associated with Maintenance of Optimal Memory Performance in Late-Life. Neuropsychologia, 100, 164-170.

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High-Resolution 3D T1-Weighted MRI Acquisition

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Participants underwent MRI on a Siemens TrioTIM 3 T scanner equipped with a 12-channel phased-array whole-head coil. Head motion was restrained with a foam pillow and extendable padded head clamps. Earplugs were used to attenuate scanner noise. High-resolution 3D T1-weighted multi-echo magnetization-prepared, rapid acquisition gradient echo anatomical images were collected with the following parameters: TR = 2200 ms; multi-echo TEs = 1.54 ms, 3.36 ms, 5.18 ms, and 7 ms; FA = 7°, 4× acceleration, 1.2 × 1.2 × 1.2 mm voxels.

Amariglio R.E., Buckley R.F., Rabin J.S., Papp K.V., Quiroz Y.T., Mormino E.C., Sparks K.P., Johnson K.A., Rentz D.M, & Sperling R.A. (2020). Examining cognitive decline across black and white participants in the Harvard Aging Brain Study. Journal of Alzheimer's disease : JAD, 75(4), 1437-1446.

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