8 channel phased array coil

Manufactured by GE Healthcare

Sourced in United States

The 8-channel phased array coil is a specialized piece of laboratory equipment designed for use in magnetic resonance imaging (MRI) systems. The core function of this coil is to receive and transmit radio frequency (RF) signals during the MRI imaging process, enabling the acquisition of high-quality images. The 8-channel design allows for the simultaneous collection of data from multiple receiver channels, improving the efficiency and accuracy of the imaging process.

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Lab products found in correlation

1.5t superconducting mri scanner, by GE Healthcare (2 mentions) Hdxt 16, by GE Healthcare (2 mentions) 3.0 tesla mr scanner, by GE Healthcare (1 mentions) Discovery mr750, by GE Healthcare (1 mentions) 3.0t discovery mr 750, by GE Healthcare (1 mentions)

Close spelling variants of this product

8-channel phased-array torso coils (3 citations)

14 protocols using 8 channel phased array coil

Multimodal Neuroimaging of Amyloid Pathology

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MRI studies were performed on a single 1.5T system, with an 8-channel phased-array coil (GE Healthcare). A 3D high resolution MPRAGE acquisition with TR/TE/TI = 7/3/900 ms; flip angle 8 degrees; in plane resolution of 1.0mm and a slice thickness of 1.2mm was performed for anatomical segmentation and labeling of PiB PET scans.
PET images were acquired using a PET/CT scanner (DRX; GE Healthcare) operating in 3D mode. The participants were injected with 292–729 MBq [¹¹C]PIB. A CT image was obtained for attenuation correction. After a 40-min uptake period, a 20-min PiB scan was obtained. The PiB-PET acquisition consisted of four 5-min dynamic frames, acquired from 40 to 60 min after injection. Standard corrections were applied. The pixel size for PET images was 1.0mm and the slice thickness was 3.3 mm.

Kantarci K., Lowe V.J., Lesnick T.G., Tosakulwong N., Bailey K.R., Fields J.A., Shuster L.T., Zuk S.M., Senjem M.L., Mielke M.M., Gleason C., Jack CR J.r., Rocca W.A, & Miller V.M. (2016). Early Postmenopausal Transdermal 17β-Estradiol Therapy and Amyloid-β Deposition. Journal of Alzheimer's Disease, 53(2), 547-556.

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Multi-Modal Brain Imaging Protocol

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All scans were obtained using a 3.0 tesla MR scanner (GE Healthcare, Milwaukee, WI), using the body coil for transmission and an 8-channel phased array coil for reception. Images that were evaluated included: DWI with 6-directional axial diffusion EPI sequences (TR/TE = 7000–12425/76–89 ms, matrix = 256 × 256 × 120, slice thickness = 1.5 mm, FOV = 24 cm × 24 cm × 18 cm, b = 1000 s/mm², NEX = 4) or DWI with 3-directional axial EPI sequences (TR/TE = 13800/80.2 ms, matrix = 110 × 116, slice thickness = 2.5 mm, FOV = 25 cm × 22.5, b = 1000 s/mm², NEX = 4). Volumetric T1-weighted inversion recovery spoiled gradient echo images (TR/TE = 8.86/2.50 ms, matrix = 256 × 256, slice thickness = 1.5 mm, FOV = 24 × 24 cm, TI = 400 ms, Flip angle = 15°) before and after a 5 ml/s bolus injection of 0.1 mmol/kg body weight Gd-DTPA (Magnevist, gadopentetate dimeglumine). T2*-weighted EPI (TE/flip angle = 25–45 ms/35°, matrix, slice thickness = 5 mm).

Alcaide-Leon P., Luks T.L., Lafontaine M., Lupo J.M., Okada H., Clarke J.L, & Villanueva-Meyer J.E. (2019). Treatment-induced lesions in newly diagnosed glioblastoma patients undergoing chemoradiotherapy and Heat-Shock Protein vaccine therapy. Journal of neuro-oncology, 146(1), 71-78.

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Neuroanatomical Measures in Alzheimer's Disease

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Participants underwent MRI scans at baseline at 3 Tesla using an 8‐channel phased array coil (GE Healthcare, Waukesha, WI). A three‐dimensional, high‐resolution magnetization‐prepared rapid acquisition gradient echo was performed for hippocampal volume and cortical thickness measurements.²⁷ Parameters were sagittal plane, repetition time/echo time/inversion time, 2300/3/900 ms; flip angle 8°, 26 cm; field of view (FOV); 256 × 256 in‐plane matrix with a phase FOV of 0.94 and slice thickness of 1.2 mm. All images were corrected for gradient non‐linearity and intensity non‐uniformity.²⁸ Hippocampal volumes were measured using FreeSurfer software version 5.3 on each T1‐weighted scan. Regional cortical thickness measurements were estimated using FreeSurfer 5.3 software with default settings.²⁹ AD‐related temporal lobe cortical thickness measure was composed of the following individual cortical thickness regions of interest: entorhinal, inferior temporal, middle temporal, and fusiform.²⁸ Atrophy in this temporal lobe meta region of interest is characteristic of typical AD and related disorders such as LATE disease.¹², ³⁰ Total intracranial volumes (TIVs) were measured using an algorithm developed in‐house. Hippocampal volume was adjusted for TIV.

Kara F., Lohse C.M., Castillo A.M., Tosakulwong N., Lesnick T.G., Jack CR J.r., Petersen R.C., Olson J.E., Couch F.J., Ruddy K.J., Kantarci K, & Mielke M.M. (2022). Association of raloxifene and tamoxifen therapy with cognitive performance, odds of mild cognitive impairment, and brain MRI markers of neurodegeneration. Cancer Medicine, 12(3), 2805-2817.

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Comprehensive Abdominal MRI Protocol

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After fasting for at least 6 hours and learning how to breathe and breath-hold correctly in accordance with the order of MRI operator, all subjects underwent MRI of the upper abdomen using a 3.0-T scanner (HDxt; GE Medical Systems) with an 8-channel phased array coil. Parallel imaging using the Array Spatial Sensitivity Encoding Technique (ASSET) were done at first, followed by the axial breath-holding three-dimensional fast spoiled gradient-echo (3D FSPGR) T1 weighted imaging, FSE-XL fat-suppression respiratory-triggered T2 weighted imaging, SE/EPI diffuse weighted imaging, and magnetic resonance cholangiopancreatography.
For contrast-enhanced MRI, Gd-EOB-DTPA was injected as a bolus at 0.025 mmol/kg at a rate of 1.0 mL/s, followed by the same volume of physiological saline flush at a rate of 2.0 mL/s. The dynamic and delayed imaging in the HBP at 5, 10, 15, 20, and 25 min (i.e., at DT-5, DT-10, DT-15, DT-20 and DT-25) was sequentially executed after injection of Gd-EOB-DTPA using an axial fat-suppressed liver acceleration volume acquisition (LAVA) sequence (repetition time = 2.8 ms; echo time = 1.2-1.3 ms; ﬂip angle = 11°; frequency bandwidth of 83.33; ﬁeld of view = 400-480 mm; acquisition matrix = 224 × 224; ASSET3.00PH; slice thickness = 2.6 mm; phase ﬁeld of view = 1.0; acquisition time = 12-16 s).

Wu J.W., Yu Y.C., Qu X.L., Zhang Y, & Gao H. (2018). Optimization of hepatobiliary phase delay time of Gd-EOB-DTPA-enhanced magnetic resonance imaging for identification of hepatocellular carcinoma in patients with cirrhosis of different degrees of severity. World Journal of Gastroenterology, 24(3), 415-423.

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MRI Imaging Protocol for Tumor Evaluation

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All patients were examined using a GE 1.5T superconducting MRI scanner with an 8-channel phased array coil. Before the examination, the patient kept his bladder properly filled and laid in a supine position with a routine plain scan. The scan sequences included transection, coronal planes, sagittal plane autogyro wave T2W1 and T2W1 fat suppression sequence, and transection autogyro wave T1W1 sequence. After plain scanning, enhanced scanning was performed. The contrast agent gadolinium spray meglumine (0.1 mmol/kg) was injected intravenously to analyze tumor morphology, size, echo, and signal intensity under different sequence scanning.

Gao X., Li Q., Qu Y., Zhang J., Xing Y, & Li S. (2021). Effect of Combination of Traditional Chinese Medicine with Western Medicine on Endometrial Carcinoma and Its Influence on Ultrasound, MRI, Tumor Markers HE4 and CA125. Evidence-based Complementary and Alternative Medicine : eCAM, 2021, 6053406.

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Multimodal MRI for Neurological Evaluation

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A 3Tesla GE scanner (Hdxt 16.0) with an 8-channel phased-array coil was used and T1-weighted sagittal 3D-BRAVO (1.2×1.2×1.2mm) with and without gadolinium enhancement, T2 (0.5×0.5×3mm), T2-FLAIR (1.2×0.6×0.6mm) sequences were obtained. MRI scans were obtained within 4 weeks of the PET scans.

Kang Y., Hurtado Rúa S.M., Kaunzner U.W., Perumal J., Nealon N., Qu W., Kothari P.J., Vartanian T., Kuceyeski A, & Gauthier S.A. (2020). A Multi-ligand Imaging Study exploring GABAergic Receptor Expression and Inflammation in Multiple Sclerosis. Molecular imaging and biology, 22(6), 1600-1608.

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Structural and Functional Brain Imaging Protocol

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MRI data were obtained using a 3.0T magnetic resonance scanner (Discovery MR750; GE Healthcare, Waukesha, WI, United States) at Zhejiang People’s Hospital and an 8-channel phased array coil was used for all the subjects. Raw structural images were acquired using a high-resolution 3D T1-weighted magnetization-prepared rapid gradient echo (MPRAGE) sagittal sequence with predefined direct MR acquisition parameters [repetition time (TR) = 6.7 ms, echo time (TE) = 2.9 ms, slice thickness = 1 mm, field of view (FOV) = 256 × 256 mm², flip angle = 12^°, resolution = 256 × 256, and 192 slices]. Rs-fMRI images were acquired using an echo-planar imaging sequence (TR = 2,000 ms, TE = 30 ms, slice thickness = 3.2 mm, FOV = 220 × 220 mm², flip angle = 90^°, resolution = 64 × 64, and 210 volumes and 44 slices).

Wang L., Feng Q., Ge X., Chen F., Yu B., Chen B., Liao Z., Lin B., Lv Y, & Ding Z. (2022). Textural features reflecting local activity of the hippocampus improve the diagnosis of Alzheimer’s disease and amnestic mild cognitive impairment: A radiomics study based on functional magnetic resonance imaging. Frontiers in Neuroscience, 16, 970245.

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Amyloid Imaging Using [11C]PIB PET

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MRI studies were performed on a single 1.5T system, with an 8-channel phased-array coil (GE Healthcare). A 3D high resolution MPRAGE acquisition with TR/TE/TI = 7/3/900 ms; flip angle 8 degrees; in plane resolution of 1.0 mm and a slice thickness of 1.2 mm was performed for anatomical segmentation and labeling of PiB PET scans.
PET images were acquired using a PET/CT scanner (DRX; GE Healthcare) operating in 3D mode. The participants were injected with 292–729 MBq [¹¹C]PIB. A CT image was obtained for attenuation correction. After a 40-min uptake period, a 20-min PiB scan was obtained. The PiB- PET acquisition consisted of four 5-min dynamic frames, acquired from 40 to 60 min after injection. Standard corrections were applied. The pixel size for PET images was 1.0 mm and the slice thickness was 3.3 mm.

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High-Resolution 3T MRI Brain Imaging Protocol

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Magnetic resonance imaging (MRI) was performed using 3-T scanners (Signa; GE Healthcare) equipped with an 8-channel phased array coil (GE Healthcare). A 3-dimensional magnetization–prepared rapid gradient echo sequence was performed (84 (link), 85 (link)) with the following sequence: TR = 200 ms, TE = 20 ms, section thickness = 3.3 mm with 49 sections, flip angle = 20° and in-plane matrix of 256 × 224 (86 (link)). All images have the following resolution (x,y,z)= 1.016 × 1.016 × 1.200 mm³. Images were corrected for distortion due to gradient nonlinearity and for bias field (87 (link)).

Abulseoud O.A., Caparelli E.C., Krell‐Roesch J., Geda Y.E., Ross T.J, & Yang Y. (2024). Sex-difference in the association between social drinking, structural brain aging and cognitive function in older individuals free of cognitive impairment. Frontiers in Psychiatry, 15, 1235171.

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MRI Examination of Tumor Morphology

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All patients were examined using a GE 1.5T superconducting MRI scanner with an 8-channel phased array coil. Before the examination, patients were instructed to keep a full bladder and placed in supine position for a routine plain scan. The scan sequences included transection, coronal planes, sagittal plane autogyro wave T2W1 and T2W1 fat suppression sequence, and transection autogyro wave T1W1 sequence. After plain scanning, enhanced scanning was performed. The contrast agent gadolinium spray meglumine (0.1 mmol/kg) was injected intravenously to analyze tumor morphology, size, echo, and signal intensity under different sequences of scanning.

Liao Y., Zhu C., Song X., Ruan J., Ding Y., Chen Y, & Yang Q. (2022). Efficacy of PD-1 Inhibitor Combined with Bevacizumab in Treatment of Advanced Endometrial Cancer Patients with Mismatch Repair Deficiency (dMMR)/High-Level Microsatellite Instability (MSI-H). Medical Science Monitor : International Medical Journal of Experimental and Clinical Research, 28, e934493-1-e934493-9.

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