Achieva 3.0 t mr scanner

Manufactured by Philips

Sourced in United States

The Achieva 3.0 T MR scanner is a magnetic resonance imaging (MRI) system manufactured by Philips. It operates at a magnetic field strength of 3.0 Tesla, which allows for high-quality imaging of the human body. The scanner is designed to provide detailed anatomical and functional information to support medical diagnosis and research.

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Lab products found in correlation

8 channel sense knee coil, by Philips (1 mentions) Eight channel phased array head coil, by Philips (1 mentions) 8 channel head coil, by Philips (1 mentions) Gd eob dtpa, by Bayer (1 mentions) Gadovist, by Bayer (1 mentions) 32 channel sense head coil, by Philips (1 mentions)

Close spelling variants of this product

Achieva 3.0 T whole-body MR scanner 3.0 T Achieva scanner 3.0 T MR scanner Philips 3.0 T Achieva Achieva MR scanner 3.0 T scanner Achieva scanner Achieva

12 protocols using achieva 3.0 t mr scanner

Knee MRI Protocol for Meniscus and Cartilage

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MRI was performed on an Achieva 3.0 T MR scanner (Philips Medical System, Best, The Netherlands) using a 8-channel SENSE knee coil (Philips). The knee MRI protocol included T2 mapping after routine conventional MRI for 20 minutes with the patients in the supine position with knees in full extension and ankles kept in the neutral position. For morphological evaluation of the meniscus and cartilage, we used the routine imaging sequence summarized in Table 1. The T2 map consisted of a sagittal multi-echo spine-echo (SE) T2-weighted sequence performed with a repetition time (TR) of 2500 ms, 6 echo times (TE) of 13, 26, 39, 52, 65, and 78 ms, a slice thickness of 3 mm, a field of view of 160 mm × 160 mm, a pixel matrix of 320 × 320, and a total acquisition time of 7 minutes 56 seconds.

Yoon H., Lim H.J., Kim J., Park K.B., Kim H.W, & Lee M.J. (2022). T2 Relaxation Time Changes in the Distal Femoral Condylar Cartilage of Children and Young Adults with Discoid Meniscus. Cartilage, 13(1), 19476035221085142.

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High-Resolution 3D Brain Imaging Protocol

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Brain images were acquired with a Phillips Achieva 3.0-T MR scanner with an eight-channel phased-array head coil. Before scanning, each patient was asked to remain in a resting state as much as possible, and his or her head was fixed with foam padding to limit head movement. Routine scan sequences were conducted, including axial T1WI, T2WI, and a fluid-attenuated inversion recovery sequence to identify any exclusionary intracranial lesions. The anatomical structure was captured with a T1W-3D-TFE-ref pulse sequence that produces a three-dimensional, high-resolution sagittal T1WI image. The main scan parameters were as follows: repetition time = 7.5 ms, echo time = 3.7 ms, flip angle = 8°, voxel size = 1 mm × 1 mm × 1 mm, field of view = 240 mm × 240 mm, matrix = 232 × 227, number of layers = 150, and layer spacing = 0.

Liu J., Chen X., Liu C., Chen M., Jiang D., Lin X., Li G., Tian H., Wang L., Zhuo C, & Tu W. (2021). Left Cerebral Cortex Complexity in Patients with Major Depression Disorder: A Small-Sample Pilot Study. Psychiatry and Clinical Psychopharmacology, 31(3), 245-251.

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3D MRI Acquisition of Brain Lesions

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The MR-sequences were acquired on an Achieva 3.0 T MR-scanner (Philips), equipped with the standard head coil. Each patient was scanned with a sagittal 3D fluid attenuated inversion recovery (FLAIR) sequence (TR/TE/TI (inversion time) 4800/279/1650 ms acquired voxel size 1.12 × 1.12 × 1.12 mm, reconstructed voxel size 1.04 × 1.04 × 0.56 mm) and a sagittal 3D T1-weighted gadolinium-enhanced (T1G) sequence (TR/TE/TI/flip angle 7/3/950 ms/12°, acquired voxel size 0.98 × 0.98 × 1.00 mm, reconstructed voxel size 0.89 × 0.89 × 1.00 mm).

Verburg N., Koopman T., Yaqub M., Hoekstra O.S., Lammertsma A.A., Schwarte L.A., Barkhof F., Pouwels P.J., Heimans J.J., Reijneveld J.C., Rozemuller A.J., Vandertop W.P., Wesseling P., Boellaard R, & de Witt Hamer P.C. (2019). Direct comparison of [11C] choline and [18F] FET PET to detect glioma infiltration: a diagnostic accuracy study in eight patients. EJNMMI Research, 9, 57.

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Whole-Brain Structural MRI Acquisition

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All structural MRI data images were collected using the DLBS with a Philips Achieva 3.0 T MR scanner with an 8-channel head coil. High-resolution T1-weighted, sagittal 3D magnetization-prepared rapid gradient-echo (MP-RAGE) sequences were acquired and covered the entire brain. The parameters used were as follows: 160 sagittal slices, repetition time (TR) =8.1 ms, echo time (TE) =3.7 ms, slice thickness =1 mm, flip angle =12°, field of view (FOV) =204×256 mm², and acquisition matrix =256×256.

Cui D., Wang D., Jin J., Liu X., Wang Y., Cao W., Liu Z, & Yin T. (2022). Age- and sex-related differences in cortical morphology and their relationships with cognitive performance in healthy middle-aged and older adults. Quantitative Imaging in Medicine and Surgery, 13(2), 1083-1099.

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Resting-State fMRI Data Acquisition

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Imaging was performed with an Achieva 3.0 T MR scanner (Philips, Amsterdam, The Netherlands). During the scanning, subjects were instructed to remain in an awake and relaxed state, to avoid thinking anything about a specific topic, and to keep their eyes closed. The resting-state functional imaging was collected using the echo-planar image (EPI) technique (repetition time (TR) = 2000 ms, echo time (TE) = 30 ms, voxel size = 3.44 × 3.44 × 6.00 mm, field of view = 220 × 220 mm², flip angle = 90°, 31 slices, slice thickness = 5 mm, slice gap = 1 mm, scanning time > 360 s).

Cai L., Liang Y., Huang H., Zhou X, & Zheng J. (2020). Cerebral functional activity and connectivity changes in anti-N-methyl-D-aspartate receptor encephalitis: A resting-state fMRI study. NeuroImage : Clinical, 25, 102189.

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High-Resolution 3T MRI for Amyloid PET

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The MRI for all patients was performed on an Achieva 3.0‐T MR scanner (Philips Medical Systems, Best, The Netherlands) equipped with a 32‐channel coil within 38 ± 25 (range, 1–81) days before amyloid PET. 3D T1‐weighed MRI (3DT1WI) was acquired for each participant using a volumetric turbo field echo T1‐weighted structural sequence (300 sagittal slices; repetition time, 7.0 ms; echo time, 3.4 ms; field of view, 260 × 240 mm; voxel size, 0.7 × 0.7 × 0.6 mm³; flip angle, 10°).

Matsuda H., Soma T., Okita K., Shigemoto Y, & Sato N. (2023). Development of software for measuring brain amyloid accumulation using 18F‐florbetapir PET and calculating global Centiloid scale and regional Z‐score values. Brain and Behavior, 13(7), e3092.

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MRI-Based Hepatic Triglyceride Quantification for NAFLD

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Measurement of liver fat content and diagnosis of NAFLD was made by MRI. In order to estimate the hepatic triglyceride content, we performed PMRS [23 (link)], with the calculation of proton density fat fraction (PDFF). A Philips Achieva 3.0 T MR-scanner (Philips Healthcare, Best, The Netherlands) was used for imaging. The resonances were used for calculation of the triglycerides were water (peak at 4.7 ppm), methylene (peak at 1.3 ppm, [CH2]n) and methyl (peak at 0.9 ppm, CH3). A detailed description of the imaging examination and post-processing analysis has been described [24 (link),25 (link)]. An example of the acquired images and spectra is depicted in (Supplementary Figure S1). When hepatic triglyceride content is measured with MRI proton density fat fraction, a cut-off value of 5% has been used to define NAFLD [26 (link)].

Cantoral A., Contreras-Manzano A., Luna-Villa L., Batis C., Roldán-Valadez E.A., Ettinger A.S., Mercado A., Peterson K.E., Téllez-Rojo M.M, & Rivera J.A. (2019). Dietary Sources of Fructose and Its Association with Fatty Liver in Mexican Young Adults. Nutrients, 11(3), 522.

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Quantitative Sodium Imaging of Calf Muscles

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Imaging was done on a Philips Achieva 3.0 T MR scanner (Philips Healthcare, Cleveland OH, USA) with a ²³Na quadrature knee coil (Rapid Biomedical GmbH, Rimpar, Germany) as reported previously.¹⁰ (link)^,²³ (link) We used calibration phantoms (aqueous solutions with increasing NaCl concentrations) as reference standards and scan them together with sections through the subject's calf muscles for quality control. The left lower leg (the widest part of calf region) was scanned with the skin closely in contact with the hard surface of the phantom holder for 3 min and 52 s. All imaging data were processed off-line with custom MATLAB (R2013a) scripts. Na⁺ quantification was performed by comparing signal intensities between tissue and calibration phantoms on the Na⁺ image. A linear relationship (Na⁺ concentration vs. signal intensity) was assessed based on the phantom data, and results from a linear regression are applied to tissue regions to quantify Na⁺ content. For urine sodium measurement, an ion selective electrode was employed to quantify sodium in samples collected over 24 h.

Ruggeri Barbaro N., Van Beusecum J., Xiao L., do Carmo L., Pitzer A., Loperena R., Foss J.D., Elijovich F., Laffer C.L., Montaniel K.R., Galindo C.L., Chen W., Ao M., Mernaugh R.L., Alsouqi A., Ikizler T.A., Fogo A.B., Moreno H., Zhao S., Davies S.S., Harrison D.G, & Kirabo A. (2020). Sodium activates human monocytes via the NADPH oxidase and isolevuglandin formation. Cardiovascular Research, 117(5), 1358-1371.

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Neonate Brain Diffusion MRI Acquisition

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All neonates were scanned with a Philips 3.0 T Achieva MR scanner at the Children’s Medical Center, Dallas. They were well-fed before scanning. During scan, all neonates were asleep naturally without sedation. Earplugs, earphones and extra foam padding were applied to reduce the sound of the scanner while the neonates were asleep. A single-shot EPI sequence (SENSE factor = 2.5) was used for dMRI acquisition, with the following parameters: TE=78ms, TR=6850ms, in-plane field of view = 168 × 168mm², in-plane imaging matrix = 112 × 112, in-plane imaging resolution =1.5 × 1.5mm², slice thickness =1.6mm without gap, slice number=60, 30 independent diffusion encoding directions with b value = 1000 s/mm². The images were reconstructed to 256 × 256 in-plane matrix. Two repetitions were conducted for dMRI acquisition, resulting in a scan time of 11 minutes. As described in our previous publication (Huang et al. 2015 (link)), with 30 diffusion weighted image (DWI) volumes and 2 repetitions, we accepted those dMRI datasets with less than 5 DWI volumes affected by severe motion. The affected volumes were replaced by the good volumes of another dMRI repetition during post processing.

Zhao T., Mishra V., Jeon T., Ouyang M., Peng Q., Chalak L., Wisnowski J.L., Heyne R., Rollins N., Shu N, & Huang H. (2018). Structural network maturation of the preterm human brain. NeuroImage, 185, 699-710.

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Abdominal MRI Imaging Protocol Using Gd-EOB-DTPA

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A Philips 3.0T Achieva MR scanner with a 16-channel abdominal coil was used to perform the abdominal MRI. The MRI plain scan was performed first, including T2-weighted imaging (T2WI) with spectral attenuated inversion recovery, diffusion-weighted imaging (DWI) (b = 0, 800 s/mm²), and in-phase/out-phase T1-weighted imaging (T1WI). The contrast agent Gd-EOB-DTPA (Germany Bayer, Medical Health Co., Ltd.) was injected into the cubital vein at a flow rate of 1.0 ml/s, using 0.1 ml/kg of bodyweight, and rinsed with 20 ml saline after injection. The enhancement scan used the T1 high-resolution isotropic volume excitation sequence (THRIVE). Axial images of the arterial phase (AP), portal venous phase (PP), transitional phase (TP), and HBP were collected at 20 s, 1 min, 3 min, and 20 min after injection of the contrast agent. The parameters of the scan sequences are listed in Table 1.Table 1

The parameters of the scan sequences

	TR (ms)	TE (ms)	Slice thickness (mm)	Slice gap (mm)	Matrix
T2WI	2000	70.0	5.0	1.0	250 × 230
DWI	3000–5000	55.0	5.0	1.0	128 × 160
In-phase/out-phase T1WI	150	2.3/1.15	7.0	1.0	250 × 230
THRIVE	3	1.5	2.5	0	250 × 230

T2WI T2-weighted imaging, DWI diffusion-weighted imaging, T1WI T1-weighted imaging, THRIVE high-resolution isotropic volume excitation sequence

Lu X.Y., Zhang J.Y., Zhang T., Zhang X.Q., Lu J., Miao X.F., Chen W.B., Jiang J.F., Ding D, & Du S. (2022). Using pre-operative radiomics to predict microvascular invasion of hepatocellular carcinoma based on Gd-EOB-DTPA enhanced MRI. BMC Medical Imaging, 22, 157.

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