3 tesla mri scanner

Manufactured by Philips

Sourced in Netherlands

The 3 Tesla MRI scanner is a medical imaging device designed to produce detailed and high-resolution images of the body. It uses a strong magnetic field and radio waves to generate images, allowing healthcare professionals to diagnose and monitor various medical conditions. The 3 Tesla refers to the strength of the magnetic field, which is three times stronger than a standard MRI scanner, providing enhanced image quality and resolution.

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Lab products found in correlation

8 channel sense head coil, by Philips (2 mentions) 32 channel sense head coil, by Philips (2 mentions) Sense 6, by Philips (1 mentions) 8 channel receive only head coil, by Philips (1 mentions) 12 channel head coil, by Philips (1 mentions) 32 channel standard head coil, by Philips (1 mentions) 32 channel head coil, by Philips (1 mentions) 32 channel whole head coil, by Philips (1 mentions) 32 channel cardiac coil, by Philips (1 mentions) Matlab r2015b, by MathWorks (1 mentions)

36 protocols using 3 tesla mri scanner

Emotional Face Processing and Resting-State fMRI

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The emotional faces paradigm was based on the event‐related emotional paradigm used by Demenescu et al. (2011 (link)). Angry, fearful, sad, happy, and neutral facial expressions were presented one at a time (stimulus duration 2.5 s) and participants were instructed to indicate the face's gender with button presses. The control condition consists of scrambled faces with a motor control task. For more details see Supporting Information Methods A1. The resting state fMRI scan lasted 7 min and 40 s. Resting state data were acquired in the darkened MR room, participants were instructed to lie still with their eyes closed and to not fall asleep (Veer et al., 2010 (link)). Compliance to these instructions was verified as part of the exit interview. Participants were scanned in Philips 3‐Tesla MRI scanners, equipped with either a SENSE‐6 (AMC) or a SENSE‐8 channel head coil (LUMC, UMCG). For scan parameters and preprocessing see Supporting Information Methods A2.

Nawijn L., Dinga R., Aghajani M., van Tol M., van der Wee N.J., Wunder A., Veltman D.J, & Penninx B.W. (2022). Neural correlates of anxious distress in depression: A neuroimaging study of reactivity to emotional faces and resting‐state functional connectivity. Depression and Anxiety, 39(7), 573-585.

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Multimodal Neuroimaging Protocol for Brain Connectivity

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All imaging was performed on Philips 3 Tesla MRI scanners (Philips Medical Systems). Whole-brain 3-dimensional T1-weighted (3D-T1) structural images were acquired using an identical sequence for both studies; repetition time (TR)/echo time (TE) = 10/4.6 ms, voxel size = 0.75 × 0.75 × 0.8 mm, flip angle = 8°. Resting-state functional magnetic resonance imaging (fMRI) was performed using 2-dimensional echo planar imaging-sensitivity encoding (EPI-SENSE) sequences: study 1 (TR/TE = 2000/35 ms, voxel size = 2.7 × 2.7 × 3.4 mm, flip angle = 72.5°, gap = 0.43 mm, Nvolumes = 202, scan time = 7 min) and study 2 (TR/TE = 1600/23 ms, voxel size = 4 mm isotropic, flip angle = 70°, gap = 0.40 mm, Nvolumes = 300, scan time = 8:13 min).

Broeders T.A., Schoonheim M.M., Vink M., Douw L., Geurts J.J., van Leeuwen J.M, & Vinkers C.H. (2021). Dorsal attention network centrality increases during recovery from acute stress exposure. NeuroImage : Clinical, 31, 102721.

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3T MRI Anatomical Brain Imaging

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Participants were scanned in Philips 3-Tesla MRI scanners located at each of the three participating centers, equipped with either a SENSE-6 or a SENSE-8 channel head coil. Anatomical images were acquired by using a 3-dimensional gradient-echo T1-weighted sequence with the following parameters: 170 slices; repetition time = 9 ms; echo time = 3.5 ms; matrix: 256 × 256; voxel size: 1 × 1 × 1 mm; scan duration = 4.5 min.

Meurs M., Groenewold N.A., Roest A.M., van der Wee N.J., Veltman D.J., van Tol M.J, & de Jonge P. (2015). The associations of depression and hypertension with brain volumes: Independent or interactive?. NeuroImage : Clinical, 8, 79-86.

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Functional MRI Brain Imaging Protocol

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All scanning was performed using a Philips 3 Tesla MRI scanner (Phillips Medical Systems, Andover, MA, USA) in the functional MRI laboratory at the VA Ann Arbor. A total of 240 T2*-weighted echo planar gradient-recall echo volumes (echo time = 30 ms, repetition time 2000 ms, 64 × 64 matrix, flip angle = 90 degree, field of view = 22 cm, 42 contiguous 3 mm axial slices per volume), were acquired. Five additional volumes were discarded at the beginning of each run to allow for equilibration of the MRI signal. A high-resolution T1-weighted structural image was also obtained to provide for more precise anatomical localization.

Javanbakht A., Tompson S., Kitayama S., King A., Yoon C, & Liberzon I. (2018). Gene by Culture Effects on Emotional Processing of Social Cues among East Asians and European Americans. Behavioral Sciences, 8(7), 62.

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Functional MRI Acquisition Protocol

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All scanning was performed using a Philips 3 Tesla MRI scanner (Philips Medical Systems, Andover, Massachusetts) in the functional MRI laboratory at the Veterans Affair Ann Arbor. A total of 240 T2*-weighted echo planar gradient-recall echo volumes (echo time = 30 ms, repetition time = 2000 ms, 64 × 64 matrix, flip angle = 90 degree, field of view = 22 cm, 42 contiguous 3 mm axial slices per volume), were acquired for each task. Five additional volumes were discarded at the beginning of each run to allow for equilibration of the MRI signal. A high-resolution T1-weighted structural image was also obtained to provide for more precise anatomical localization.

Javanbakht A., Kim P., Swain J.E., Evans G.W., Phan K.L, & Liberzon I. (2016). Sex-Specific Effects of Childhood Poverty on Neurocircuitry of Processing of Emotional Cues: A Neuroimaging Study. Behavioral Sciences, 6(4), 28.

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Non-sedated Infant MRI Scanning Protocol

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MRI data were obtained using a 3-Tesla MRI scanner (Philips Achieva, Andover, MA) using a 32-channel neurovascular coil. A bundle-and-feed, non-sedating protocol was utilized prior to the scan, where the infant participant was fed, changed and then swaddled in a blanket [17 (link)]. Each participant was then secured in an infant vacuum full-body splint (MedVac, Med-X Products, Littleton, NC) and positioned supine in the scanner with sandbags adjacent to their sides and feet to simulate containing touch. Each participant had two layers of ear protection and headphones placed over the ear to transmit lullabies at a low volume via bone conduction. MRI scans were thus performed without sedation during natural sleep and movement was minimized. If motion artifacts were detected during the scan, sequences were repeated a second time. High-resolution T1-weighted images were acquired with a sagittal reconstruction (TR = 2000 ms, TE = 4.6 ms, inversion time = 1000 ms, flip angle = 8°, with isotropic 1 mm³).

Rajagopalan V., Overholtzer L.N., Kim W.S., Wisnowski J.L., Pickering T.A., Fraga N.R., Javier J., Mackintosh L., Mirzaian C., Geffner M.E, & Kim M.S. (2023). Infants with Congenital Adrenal Hyperplasia Exhibit Thalamic Discrepancies in Early Brain Structure. Hormone research in paediatrics, 96(5), 509-517.

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Multimodal Brain Imaging Protocol

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Each participant signed a written consent form before undergoing the MRI examination. All MRI scans were carried out using a 3 Tesla MRI scanner (Philips Achieva TX) with an 8-channel receive-only head coil. Additionally, in order to reduce the effect of scanner noise and head motion, all subjects laid in a supine position with ear plugs and foam pads. The DTI datasets were acquired along 32 gradient directions (b = 1000 s/mm²), including five acquisitions without diffusion weighting (b = 0). The sequence parameters were as follows: repetition time (msec) / echo time (msec), 6800 / 93; 128 × 128 matrix; field of view, 256 mm × 256 mm; slice thickness = 3 mm, no gap; and 50 contiguous axial slices. Several other sequences were also scanned, such as T2-weighted images, T1-weighted images, T1- fluid attenuated inversion recovery (FLAIR) images, T2-FLAIR images, and all scans were inspected for motion artefacts and for the absence of pathologic findings by a neuroradiologist.

Chen J., Li Y., Xia N., Wen C., Xia T., Zhuang Y., Jiang M., Xiang Y., Zhang M., Zhan C., Yang Y., Yuan Z, & Huang Q. (2022). White matter alterations in heart-kidney imbalance insomnia and Jiao-Tai-Wan treatment: A diffusion-tensor imaging study. Brain Imaging and Behavior, 16(4), 1803-1812.

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Multimodal Neuroimaging Protocol for Parkinson's

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All patients underwent pre-operative MRI and post-operative CT imaging scans. A 3-Tesla MRI scanner (Philips Medical Systems, Best, The Netherlands) was used to acquire T1-weighted scans [slice thickness, 1 mm; repetition time (TR), 6.9 ms; echo time (TE), 3.1 ms]. The slice thickness of the post-operative CT was 0.625 mm. For the Parkinson’s Progression Marker Initiative (PPMI) database (www.ppmi-info.orgz) that was used to generate normative connectomes, 90 Parkinson’s disease patients underwent diffusion-weighted scans (TR/TE = 900/88 ms; 2 mm³ resolution; 72 slices; 64 gradient directions; and b = 1000 s/mm²) and resting fMRI scans (TR/TE = 2400/25 ms; flip angle = 80°; field of view = 240 × 240 mm; matrix = 68 × 68; 40 slices; slice thickness = 3.3 mm; voxel size = 3.25 × 3.25 × 3.25 mm³; 212 volumes).^{17 (link)} The processes of converting these original imaging data to available normative connectomes are described in detail in the Supplementary Methods sections according to Horn et al.^{18 (link)}

Fan H., Guo Z., Jiang Y., Xue T., Yin Z., Xie H., Diao Y., Hu T., Zhao B., Wu D., An Q., Xu Y., Gao Y., Bai Y, & Zhang J. (2023). Optimal subthalamic stimulation sites and related networks for freezing of gait in Parkinson’s disease. Brain Communications, 5(5), fcad238.

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3D T1-weighted MRI Brain Imaging

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Three-dimensional T1-weighted images were acquired on a 3 Tesla MRI scanner (Philips Achieva, Best, the Netherlands) with the following parameters: repetition time = 9.8ms, echo time = 4.6ms, flip angle = 8°, field of view 220×174×156 mm, 130 slices with a slice thickness of 1.2 mm with no gap between slices, resulting in a voxel size of 1.15 mm×1.15 mm×1.20 mm. All MRI scans were visually checked to ensure that no major artifacts or abnormalities were present in the data. Analyses were done using the software provided by FMRIB’s software library (FSL, version 5.0.8, Oxford, United Kingdom) [22 ]. Brain structures were identified using the Harvard-Oxford atlas integrated in FSL.

de Schipper L.J., Hafkemeijer A., van der Grond J., Marinus J., Henselmans J.M, & van Hilten J.J. (2019). Regional Structural Hippocampal Differences Between Dementia with Lewy Bodies and Parkinson’s Disease. Journal of Parkinson's Disease, 9(4), 775-783.

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Healthy Subject MRI Imaging

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Experiments were performed on a total of 10 healthy subjects (age 29±6 years, range 21-40, 6 Males) using a 3 Tesla MRI scanner (Philips Healthcare, Best, The Netherlands). The protocol was approved by the local Institutional Review Board. The body coil was used for RF transmission, and a 32-channel head coil was used for receiving.

Krishnamurthy L.C., Mao D., King K.S, & Lu H. (2015). Correction and optimization of a T2-based approach to map blood oxygenation in small cerebral veins. Magnetic resonance in medicine, 75(3), 1100-1109.

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