All participants were scanned on a Philips Intera 1.5 T system (Eindhoven, The Netherlands).6 For the visual assessment of PVSs, a T1‐weighted sequence (Magnetization Prepared–Rapid Gradient Echo; TR 15, TE 7, FA 15) consisting of 150 1‐mm axial slices without angulation, a fluid attenuation inversion recovery sequence (TR 6000, TI 1900, and TE 100, ETL 21, FA 90) of 20 5‐mm slices with a 1‐mm gap angled along the subcallosal line, and a PD/T2‐weighted sequence (TR 3995, TE 18/90, ETL 6, FA 90) of 60 3 mm slices without gap or angulation were used. All of the images were reviewed on a clinical picture archiving and communication system (SECTRA, Linköping, Sweden).6
Intera 1.5 t system
Manufactured by Philips
The Intera 1.5 T system is a magnetic resonance imaging (MRI) scanner produced by Philips. It operates at a magnetic field strength of 1.5 Tesla. The system is designed to acquire high-quality images of the human body for diagnostic purposes.
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Lab products found in correlation
3 protocols using intera 1.5 t system
1
Standardized Neuroimaging Protocol for Perivascular Spaces
2
Dynamic Contrast-Enhanced MRI of Knee
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MRI of the target knee was performed on a Philips Intera® 1.5 T system. The subjects were scanned in the supine position using a dedicated knee coil. The following MRI-sequences were performed: sagittal T1w turbo spin echo (TSE); sagittal proton density weighted (PDw) TSE; sagittal/axial/coronal PDw SPIR. Just prior to and simultaneously with the i.v injection of 0.1 ml/kg body weight Gd contrast (Gadobutrol) using a power injector (2 ml/s), a sequential sagittal DCE-MRI T1w sequence was performed in 23 slices every 5 s and with 40 repetitions (matrix 352 x 352, field of view (FOV) 180 mm, TE 4.6 ms, TR 8.3 ms, ST 8 mm, flip angle 12º).
Following this, the static sagittal T1w TSE sequence was repeated. Total scan time varied between 20 and 30 min. See Riis et al., 2017 30 for more information about the protocol.
Following this, the static sagittal T1w TSE sequence was repeated. Total scan time varied between 20 and 30 min. See Riis et al., 2017 30 for more information about the protocol.
3
Knee MRI with Dynamic Contrast-Enhanced Imaging
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MRI of the target knee was performed on a Philips Intera ® 1.5 T system. The subjects were scanned in the supine position using a dedicated knee coil. The following MRI-sequences were performed: sagittal T1w turbo spin echo (TSE); sagittal proton density weighted (PDw) TSE; sagittal/axial/coronal PDw SPIR. Just prior to and simultaneously with the IV injection of 0.1 ml/kg body weight Gadolinium contrast (Gadobutrol) using a power injector (2 ml/s), a sequential sagittal DCE-MRI T1w sequence was performed in 23 slices every 5 s and with 40 repetitions (matrix 352 Â 352, field of view (FOV) 180 mm, TE 4.6 ms, TR 8.3 ms, ST 8 mm, flip angle 12 ). Following this, the static sagittal T1w TSE sequence was repeated. Total scan time varied between 20 and 30 min. The protocol can be found in details in Appendix 1.
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