Achieva mr scanner

Manufactured by Philips

Sourced in Netherlands

The Achieva MR scanner is a magnetic resonance imaging (MRI) system manufactured by Philips. It is designed to produce high-quality images of the human body for medical diagnostic purposes. The Achieva MR scanner uses a strong magnetic field and radio waves to generate detailed images of the internal structures and organs, providing healthcare professionals with valuable information for clinical decision-making.

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Lab products found in correlation

32 channel head coil, by Philips (6 mentions) 8 channel head coil, by Philips (5 mentions) 8 channel sense head coil, by Philips (2 mentions) Eight channel sense head coil, by Philips (1 mentions) Omniscan, by GE Healthcare (1 mentions) Endorectal coil, by Bayer (1 mentions) Glucagon, by Eli Lilly (1 mentions) Matlab, by MathWorks (1 mentions) Brainamp mr plus, by Brain Products (1 mentions) 32 channel cardiac coil, by Philips (1 mentions) Super rapid2, by Magstim (1 mentions) Brainsight tms mri co registration system, by Rogue Research (1 mentions)

Spelling variants of this product

Achieva (844 citations) Achieva scanner (536 citations) Achieva 3T MR scanner (38 citations) Achieva 3.0 T MR scanner (12 citations) Achieva whole body MR scanner (6 citations) Achieva 3 Tesla MR scanner (4 citations) Achieva 1.5T MR scanner (3 citations) Achieva 3.0 Tesla MR scanner (2 citations) Intera Achieva 3.0 MR scanner (2 citations) Achieva 1.5-T Nova Dual MR scanner (2 citations)

56 protocols using achieva mr scanner

High-Resolution Structural and Diffusion MRI

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Each subject's MR data were collected by a 3Tesla Philips Achieva MR-scanner with an 8-channel head coil.
The T1-weighted images (T1WIs) were acquired using a sagittal three-dimensional SPGR sequence. The parameters of the sequence were the following: repetition time (TR), 7.7 ms; echo time (TE), 3.8 ms; flip angle, 8°; field of view (FOV), 256 × 256; voxel size, 1 mm × 1 mm × 1 mm; slice thickness, 1 mm; total time: 155 min.
The diffusion tensor images (DTIs) were acquired using an axial single-shot echo-planar imaging (EPI) sequence. The parameters of the sequence were as follows: TR, 9,155 ms; TE, 65 ms; flip angle, 90°; FOV, 230 × 230; voxel size, 1.8 × 1.8 × 2 mm; slice thickness, 2 mm; b-value, 1,000; total time, 386 min.

Qin B., Wang L., Zhang Y., Cai J., Chen J, & Li T. (2018). Enhanced Topological Network Efficiency in Preschool Autism Spectrum Disorder: A Diffusion Tensor Imaging Study. Frontiers in Psychiatry, 9, 278.

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High-resolution MRI Acquisition and Preprocessing for Brain Imaging

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Brain images were acquired on a 3T Philips Achieva MR Scanner (Philips Medical Systems, Best, The Netherlands) with a 32-channel head coil. Whole-brain high-resolution three-dimensional T1-weighted anatomical reference images were acquired using an MP-RAGE sequence (sagittal plane, FOV = 240 × 240 × 170 mm; 1 mm³ isotropic voxels). Functional images were acquired using whole-head gradient-echo-planar imaging and single-shot gradient echo (38 interleaved slices, TR = 2 s, TE = 30 ms, FOV = 252 × 252 × 133 mm, flip angle = 90°, in-plane resolution = 80 × 80, no skip).
We applied standard preprocessing procedures using Statistical Parametric Mapping 12 (SPM 12; Welcome Department of Imaging Neuroscience). This included segmentation and spatial normalization into MNI space for structural images and slice time correction, realignment and unwarp, coregistration with structural data, spatial normalization into MNI space, resampled voxel size of 2 mm³, and smoothing with an 8 mm Gaussian kernel for functional images.

Lin T., Pehlivanoglu D., Ziaei M., Liu P., Woods A.J., Feifel D., Fischer H, & Ebner N.C. (2022). Age-Related Differences in Amygdala Activation Associated With Face Trustworthiness but No Evidence of Oxytocin Modulation. Frontiers in Psychology, 13, 838642.

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Structural and Perfusion MRI Markers of PTSD

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Structural and perfusion magnetic resonance (MR) imaging scans were obtained using a 3.0 Tesla Philips Achieva MR scanner (Philips Medical System, Netherlands) equipped with a 32-channel head coil. High-resolution T1-weighted images and arterial spin labeling (ASL) images were acquired using a three-dimensional T1-weighted magnetization-prepared rapid gradient echo imaging sequence and a pseudocontinuous ASL single-shot echo-planar imaging sequence, respectively.
Absolute CBF (ml/100 g/min) and GM volumes were measured as neural correlates of FKBP5-associated miRNA expression in relation to PTSD in predefined ROIs, mainly including the prefrontolimbic regions. The prefrontal regions included the medial prefrontal cortex, paracingulate cortex, and subcallosal cortex, and the limbic regions included the amygdala, hippocampus, and nucleus accumbens.
Details regarding the image acquisition, preprocessing, selection of the prefrontolimbic ROIs, and measurements of CBF and GM volumes of the a priori defined ROIs are described in Supplementary Methods.

Kang H.J., Yoon S., Lee S., Choi K., Seol S., Park S., Namgung E., Kim T.D., Chung Y.A., Kim J., Han J.S, & Lyoo I.K. (2020). FKBP5-associated miRNA signature as a putative biomarker for PTSD in recently traumatized individuals. Scientific Reports, 10, 3353.

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Multimodal MRI Stroke Assessment Protocol

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A 3 T Philips Achieva MR scanner and an eight-element RF head coil were used for all scans. At the first session around 2 weeks post-stroke, a T2-weighted multi-slice FLAIR scan (repetition time (TR)/echo time (TE)/inversion time (TI) = 11000/125/2800 ms, acquired voxel size = 0.65 × 0.94 × 4.0 mm³, reconstructed voxel size = 0.45 × 0.45 × 4.0 mm³, field-of-view (FOV) = 230 × 183 × 129 mm³, transverse orientation) was acquired to localize the lesion. For anatomical reference, a 3D T1-weighted scan was acquired at each time point (TR/TE = 9.9/4.6 ms, flip angle = 8°, acquired voxel size = 1.0 × 1.0 × 1.0 mm³, reconstructed voxel size = 0.88 × 0.88 × 1.0 mm³, FOV = 224 × 168 × 160 mm³, transverse orientation). For BOLD (Blood Oxygen Level Dependent) MRI during execution of language tasks (828 scans per task) and a breath hold paradigm (253 scans; see below), a 3D PRESTO-SENSE sequence (TE/TR = 33.2/22.5 ms, acquisition time per image = 609 ms, flip angle = 10°, FOV = 256 × 224 × 160 mm³, voxel size = 4.0 mm³ isotropic, sagittal orientation) was used^{14 (link)}.

van Oers C.A., van der Worp H.B., Kappelle L.J., Raemaekers M.A., Otte W.M, & Dijkhuizen R.M. (2018). Etiology of language network changes during recovery of aphasia after stroke. Scientific Reports, 8, 856.

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Simultaneous EEG-fMRI Data Acquisition

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Functional magnetic resonance imaging data acquisition was performed using a 3T Philips Achieva MR scanner (Philips Medical Systems, Best, Netherlands) using a T2^∗-weighted SENSE sequence. The scanning parameters were TR = 2000 ms, TE = 30 ms, 36 slices, 80 × 80 matrix, voxel size 2.75 × 2.75 × 3.75 mm³, flip angle = 90°. During simultaneous EEG–fMRI recordings, the helium pump of the magnet was switched off for the full duration of the functional acquisition. A T1-weighted whole-head structural MR image (sMRI), to be used for head tissue modeling, was collected with a turbo field echo sequence with the following scanning parameters: TR = 8.25 ms, TE = 3.8 ms, flip angle = 8°, voxel size: 1 mm³ isotropic. A T1-weighted whole-head ultrashort echo time (UTE) image, to be used for electrode localization, was collected with a fast field echo sequence with the following scanning parameters: TR = 8 ms, TE = 0.14 ms, flip angle = 10°, voxel size: 1 mm³ isotropic.

Marino M., Arcara G., Porcaro C, & Mantini D. (2019). Hemodynamic Correlates of Electrophysiological Activity in the Default Mode Network. Frontiers in Neuroscience, 13, 1060.

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Resting-state fMRI and T1-weighted MRI Acquisition

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The MRI data were acquired via a 3.0T Philips Achieva MR scanner (Philips Medical Systems, Best, Netherlands) with a 32-channel head coil. Tight but comfortable foam padding and earplugs were applied to minimize head motion and to reduce scanner noise. During scanning, all participants were instructed to remain awake, keep their eyes closed, stay motionless and attempt to think of nothing. The imaging protocols included the following parameters: (1) resting-state functional MRI (fMRI) was scanned using an echo-planar imaging (EPI) sequence: repetition echo time (TE) = 30 ms, repetition time (TR) = 2000 ms, field of view (FOV) = 220 mm × 220 mm, flip angle (FA) = 90°, matrix = 64 × 64, slice thickness = three mm, gap = one mm, voxel size = 3 mm × 3 mm × 3 mm, and 180 volumes; (2) high-resolution sagittal T1-weighted images were obtained by a three-dimensional magnetization-prepared rapid gradient echo (MP-RAGE) sequence: TE = 3.7 ms, TR = 8.0 ms, FOV = 256 mm × 256 mm, FA = 12°, matrix = 256 × 256, slice thickness = one mm, voxel size = 1 mm × 1 mm × 1 mm, and slices = 180.

Chen J., Li J., Qiao F., Shi Z, & Lu W. (2023). Effects of home-based telerehabilitation on dynamic alterations in regional intrinsic neural activity and degree centrality in stroke patients. PeerJ, 11, e15903.

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Skeletal Muscle Mitochondrial Energy Measurement

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Skeletal muscle mitochondrial energy production was measured using a previously described MRI method.11 In vivo spectra of phosphorous‐containing metabolites were acquired using a 3T Philips Achieva MR scanner (Philips) and a 10‐cm 31P‐tuned surface coil (PulseTeq) fastened over the left thigh vastus lateralis muscle. Participants performed a rapid ballistic knee extension exercise while lying supine in the bore of the magnet; this maneuver was practiced before entering the magnet.11, 12 A series of pulse‐acquire 31P spectra were obtained before, during, and after the knee extension exercise. The pulse sequence consisted of adiabatic radiofrequency excitation pulses with a 90‐degree flip angle, for 300 acquisitions, with a repetition time of 1.5 seconds; signal averaging over 4 successive acquisitions for signal‐to‐noise ratio enhancement, gave effectively 75 spectra obtained with a temporal resolution of 6 seconds. The length of exercise was monitored to achieve between a 33% to 66% reduction in phosphocreatine (PCr) peak height (and never exceeded 42 seconds), with a post‐exercise recovery period of 5.8 to 6.3 minutes. Spectra were processed using jMRUI (version 5.0), and metabolites were quantified using a nonlinear least‐squares algorithm (AMARES).13, 14

AlGhatrif M., Zane A., Oberdier M., Canepa M., Studenski S., Simonsick E., Spencer R.G., Fishbein K., Reiter D., Lakatta E.G., McDermott M.M, & Ferrucci L. (2017). Lower Mitochondrial Energy Production of the Thigh Muscles in Patients With Low‐Normal Ankle‐Brachial Index. Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 6(9), e006604.

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Resting-State fMRI Acquisition and Processing

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Brain images were acquired with a 3T Philips Achieva MR Scanner (Philips Medical Systems, Best, The Netherlands) using a 32-channel head coil. Functional gradient-echo-planar imaging (EPI) data were acquired during the resting-state paradigm (38 interleaved slices, TR 2 sec, TE 30 msec, FOV 252 × 252 × 133 mm, 80 × 80 × 38 mm matrix, flip angle 90°, in plane resolution of 3.15 × 3.15 mm, slice thickness 3.5 mm, 0 mm skip). The resting-state scan lasted about 8 minutes, and 240 time points were acquired. Whole-brain high-resolution three-dimensional T1-weighted anatomical reference images were also acquired using an MP-RAGE sequence (sagittal plane, FOV = 240 mm × 240 mm × 170; 1 × 1 × 1 mm isotropic voxels). Processing and analysis of brain images were performed using Statistical Parametric Mapping (SPM8) software (www.fil.ion.ucl.ac.uk/spm).

Ebner N.C., Chen H., Porges E., Lin T., Fischer H., Feifel D, & Cohen R.A. (2016). Oxytocin's Effect on Resting-State Functional Connectivity Varies by Age and Sex. Psychoneuroendocrinology, 69, 50-59.

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Pseudo-Continuous ASL Imaging at 3.0T

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Data were acquired using a 3.0 T Philips Achieva MR Scanner (Philips Medical Systems, Best, The Netherlands). A pseudo continuous arterial spin labeling (pCASL) sequence with a gradient-echo echo-planar imaging readout was used with the following parameters: TR/TE = 4000/14 ms; post-label delay = 1525 ms; label duration = 1650 ms; FOV = 240 × 240 × 119 mm; 75 dynamics; voxel size 3 × 3 × 7 mm, no background suppression, scan time = 10 min. In addition, a high resolution anatomical 3D T1-weighted scan was obtained.

Schrantee A., Mutsaerts H., Bouziane C., Tamminga H., Bottelier M, & Reneman L. (2016). The age-dependent effects of a single-dose methylphenidate challenge on cerebral perfusion in patients with attention-deficit/hyperactivity disorder. NeuroImage : Clinical, 13, 123-129.

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Diffusion Tensor Imaging Acquisition

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DTI data were acquired on the same day as clinical assessments using a Philips ACHIEVA MR scanner (Philips Medical Systems, Best, the Netherlands) operating at 3.0 Tesla. For each patient, 46 images were acquired with a single-shot, diffusion-weighted echo planar imaging sequence. Seventy-five axial slices were obtained that covered the entire brain with gradients (b = 1,000 mm²/s) applied along 45 noncollinear directions with the following sequence parameters: repetition time = 8,770 ms, echo time = 60 ms, field of view = 220 × 220 mm, slice thickness = 2.25 mm, and in-plane resolution 1.96 mm × 1.96 mm.

Park E., Lee J., Chang W.H., Lee A., Hummel F.C, & Kim Y.H. (2020). Differential Relationship between Microstructural Integrity in White Matter Tracts and Motor Recovery following Stroke Based on Brain-Derived Neurotrophic Factor Genotype. Neural Plasticity, 2020, 5742421.

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