MR imaging was performed on a 1.5-T GE EXCITE HD scanner with twin-speed gradients using a neurovascular head coil (GE Healthcare, Milwaukee, WI). A 3D volumetric Inversion Recovery SPGR sequence was used to obtain high-resolution T1 anatomic images (TR=7.36 ms; TE=2.02 ms; TI=600 ms; FA=20 degrees; 124 slices, FOV=24 cm, matrix size = 256×256, 1.5 mm slice thickness). Fluid-attenuated inversion recovery (FLAIR) images were acquired in the axial plane (TR=8002 ms; TE=101.29 ms; TI=2000 ms; FA=90 degrees; FOV=24 cm; matrix size = 256 × 256; 3-mm slice thickness). Echo-planar imaging with 25 directions was used to perform whole brain diffusion tensor imaging (DTI) (TR=16000; TE=84.9; FA=90; b value = 0/1000, FOV = 280 cm, matrix size = 256×256, 3 mm slice thickness). A Q2TIPS-FAIR sequence as previously described was used to generate quantitative cerebral blood flow maps (26 (link)). This sequence generates 60 tag and control image pairs. Imaging parameters are : echo time 28ms, TI1-800ms, TI1s 1200ms, TI 2000ms, TR 3000ms, receiver bandwidth 62.5 kHz, flip angle 90 degrees, field of view 24 cm (frequency) x 18 cm (phase), an acquisition matrix 64×48 (11 slices, 8 mm thickness, 0mm slice gap), and frequency encoding direction anterior/posterior. A bipolar diffusion gradient with an equivalent b value of 5.25 mm2/sec was added to suppress intra-arterial spins (27 (link)).
Neurovascular head coil
Manufactured by GE Healthcare
The Neurovascular head coil is a specialized magnetic resonance imaging (MRI) coil designed for imaging the head and neck region, with a focus on the neurovascular system. This coil is used to acquire high-quality images of the brain, cerebral vasculature, and surrounding structures to support clinical diagnosis and treatment planning.
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Lab products found in correlation
3 protocols using neurovascular head coil
1
Multimodal MRI Protocol for Comprehensive Brain Imaging
2
Multimodal Neuroimaging Protocol for Brain Analysis
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The initial 73 scans were performed on a 1.5-T EXCITE HD scanner with twin-speed gradients using a neurovascular head coil (GE Healthcare, Milwaukee, WI). High-resolution T1 anatomic images were obtained using a three-dimensional (3D) volumetric inversion recovery spoiled grass gradient recalled sequence (repetition time [TR] 7.36 ms; echo time [TE] 2.02 ms; inversion time [TI] 600 ms; flip angle [FA] 20°; 124 slices: field of view 24 cm, matrix size 256 × 256, 1.5-mm slice thickness). Fluid-attenuated inversion recovery images were acquired in the axial plane (TR 8,002 ms; TE 101.29 ms; TI 2,000 ms; FA 90°; field of view 24 cm; matrix size 256 × 256; 3-mm slice thickness). Because of a change in scanners at the WFSM Center for Biomolecular Imaging, the subsequent 190 scans were performed on a 3.0-T) Skyra MRI scanner (Siemens Healthcare, Erlangen, Germany) using a high-resolution 20-channel head/neck coil. T1-weighted anatomic images were obtained using a 3D volumetric magnetization-prepared rapid acquisition gradient echo sequence (TR 2,300 ms; TE 2.99 ms; TI 900 ms; FA 9°; 192 slices; voxel dimension 0.97 × 0.97 × 1 mm). Fluid-attenuated inversion recovery images were acquired using a 3D SPACE inversion recovery sequence (TR 6,000 ms; TE 283 ms; TI 2,200 ms; FA 120°; 160 slices; voxel dimensions 1.1 × 1.1 × 1 mm).
3
Multimodal MRI Neuroimaging Protocol
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The initial 41 scans were performed on a 1.5-T EXCITE HD scanner with twin-speed gradients using a neurovascular head coil (GE Healthcare). High-resolution T1 anatomic images were obtained using a three-dimensional (3D) volumetric inversion recovery spoiled gradient recalled sequence (repetition time [TR] 7.36 ms, echo time [TE] 2.02 ms, inversion time [TI] 600 ms, fractional anisotropy [FA] 20°, 124 slices, field of view [FOV] 24 cm, matrix size 256 × 256, 1.5 mm slice thickness). Fluid-attenuated inversion recovery images were acquired in the axial plane (TR 8,002 ms, TE 101.29 ms, TI 2,000 ms, FA 90°, FOV 24 cm, matrix size 256 × 256, 3 mm slice thickness). Because of a change in scanners at the WFSM Center for Biomolecular Imaging, the subsequent 227 scans were performed on a 3.0-T Skyra MRI Scanner (Siemens Healthcare, Erlangen, Germany) using a high-resolution 20-channel head/neck coil. T1-weighted anatomic images were obtained using a 3D volumetric magnetization-prepared rapid acquisition gradient echo sequence (TR 2,300 ms, TE 2.99 ms, TI 900 ms, FA 9°, 192 slices, voxel dimension 0.97 × 0.97 × 1 mm). Fluid-attenuated inversion recovery images were acquired using a 3D SPACE inversion recovery sequence (TR 6,000 ms, TE 283 ms, TI 2,200 ms, FA 120°, 160 slices, voxel dimensions 1.1 × 1.1 × 1 mm).
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