Siemens Spectra 3.0T MRI machine, 6-channel phased array surface coil, breath-hold scan (layer thickness, 3–5 mm; layer spacing, 0–30 mm; field of view, 380 × 380 mm; excitation, 1), half-Fourier acquisition single-shot turbo-spin-echo (HASTE), and true fast imaging with steady-state precession (true FISP) sequence were used for T2-weighted imaging. T1-weighted three-dimensional disturbing phase gradient echo sequencing, Siemens' volume interpolated breath-hold examination (VIBE), and coronal, sagittal, and axial scanning were performed. HASTE had the following parameters: repetition time (TR), 1,200 ms; echo time (TE), 98 ms; flip angle (FA), 120; and matrix, 256 × 256, with the pregnant women holding their breath for 17–20 s at a time. True FISP had the following parameters: TR, 486.77 ms; TE, 1.54 ms; FA, 52; and matrix, 256 × 256, with the pregnant women holding their breath 20 s at a time. VIBE had the following parameters: TR, 3.86 ms; TE, 1.36 ms; and FA, 9.0, with the pregnant women holding their breath 16 s at a time (3 (link), 7 (link), 11 (link)). By observing the position and shape of the fetal conus medullaris, the size and shape of the intraspinal mass, its relationship with the conus, and the movement of the spinal cord and nerves, the spinal neural tube malformation in the fetus was determined.
6 channel phased array surface coil
Manufactured by Siemens
Sourced in United States, Germany
The 6-channel phased array surface coil is a specialized lab equipment designed for magnetic resonance imaging (MRI) applications. It features six independent receive channels that allow for parallel imaging techniques to be employed, potentially enhancing image quality and reducing scan time. The core function of this coil is to efficiently detect and receive the radio frequency (RF) signals generated during the MRI process, enabling the capture of high-quality image data.
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Lab products found in correlation
3 protocols using 6 channel phased array surface coil
1
Fetal Spinal MRI for Neural Tube Defects
2
Multiparametric MRI Prostate Cancer Protocol
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All patients underwent mpMRI in accordance with PI-RADS version 2 recommendations.9 (link) All scans were performed on a 3-Tesla MR scanner (TrioTIM, Siemens Healthcare, Malvern, PA, USA) with a 6-channel phased-array surface coil and without an endorectal coil. Multiparametric imaging combining axial, sagittal, and coronal T2-weighted, axial diffusion-weighted (b = 50 s mm−2, 800 s mm−2, and 1500 s mm−2), and dynamic contrast-enhanced imaging (10 ml of gadoterate meglumine injected intravenously at 2.5 ml s−1, and axial three-dimensional [3D] volumetric interpolated breath-hold examination [VIBE] with temporal resolution of 8–10 s) was used to assess for the likelihood of cancer. Two experienced uroradiologists (CHL and CHT) with 15 years’ and 10 years’ experience in interpreting mpMRI, respectively, reviewed all images. They also segmented the images and marked out the location of the suspicious lesion(s) (DynaCAD; Invivo Corporation, Gainesville, FL, USA).
3
Pelvic MRI Imaging Protocol Comparison
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Center 1: MRI imaging was performed with a 3.0 T MR scanner (Siemens Verio, Germany) and an 8-channel phased-array surface coil. Pelvic enhanced scanning was performed on all patients, with the following detailed scanning parameters: (1) T2WI: FOV: 320 × 320 mm, slice thickness: 4 mm, repetition time (TR)/echo time (TE): 4500 ms/97 ms. (2) CE-T1WI: FOV: 288 × 288 mm, slice thickness: 3 mm, TR/TE: 3.48 ms/1.3 ms. (3) DWI (b-values of 0 and 1000 s/mm2): FOV: 160 mm × 160 mm, slice thickness: 5 mm, TR/TE: 6700 ms/92 ms. (4) ADC: FOV: 160 mm × 160 mm, slice thickness: 5 mm, TR/TE: 6700 ms/92 ms.
Center 2: MRI imaging was performed with a 1.5T MRI scanner (Siemens Avanto, Germany) and a 6-channel phased array surface coil. Pelvic-enhanced scans were performed on all patients, with the following detailed scanning parameters: (1) T2WI: FOV: 320 × 320 mm, slice thickness: 4 mm, TR/TE: 5210 ms/79 ms. (2) CE-T1WI: FOV: 320 × 320 mm, slice thickness: 4 mm, TR/TE: 735 ms/11 ms. (3) DWI (b-values of 0 and 800 s/mm2): FOV: 160 mm × 136 mm, slice thickness: 5 mm, TR/TE:8900 ms/84 ms. (4) ADC: FOV: 160 mm × 136 mm, slice thickness: 5 mm, TR/TE: 8900 ms/84 ms.
Center 2: MRI imaging was performed with a 1.5T MRI scanner (Siemens Avanto, Germany) and a 6-channel phased array surface coil. Pelvic-enhanced scans were performed on all patients, with the following detailed scanning parameters: (1) T2WI: FOV: 320 × 320 mm, slice thickness: 4 mm, TR/TE: 5210 ms/79 ms. (2) CE-T1WI: FOV: 320 × 320 mm, slice thickness: 4 mm, TR/TE: 735 ms/11 ms. (3) DWI (b-values of 0 and 800 s/mm2): FOV: 160 mm × 136 mm, slice thickness: 5 mm, TR/TE:8900 ms/84 ms. (4) ADC: FOV: 160 mm × 136 mm, slice thickness: 5 mm, TR/TE: 8900 ms/84 ms.
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