Achieva dstream 32 channel headcoil mri scanner

Manufactured by Philips

The Achieva dstream 32-channel headcoil MRI scanner is a medical imaging device used for brain and neurological scans. It features a 32-channel coil design that enables high-quality, high-resolution imaging of the head and brain region.

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2 protocols using achieva dstream 32 channel headcoil mri scanner

Longitudinal brain imaging protocol

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At baseline and follow-up, participants received a high-resolution T1-weighted structural MRI scan. A 3T Philips Achieva dstream 32-channel headcoil MRI scanner was used (Philips, Best, The Netherlands). Sixty-five baseline and 57 follow-up scans were acquired using a 3D turbo field echo sequence: repetition time = 9.6 ms; echo time = 4.6 ms; flip angle = 8°; field of view = 250 × 250 mm; 182 slices; voxel size 0.98 × 0.98 × 1.2 mm³. Five follow-up scans were acquired using a three-dimensional magnetisation-prepared rapid gradient-echo sequence, due to being acquired as part of The Amyloid imaging to prevent Alzheimer’s disease (AMYPAD) study: repetition time = 6.6 ms; echo time = 3.1 ms; flip angle = 9°; field of view = 270 × 252 mm; 170 slices; voxel size 1.05 × 1.05 × 1.2 mm³. Three individuals refused a follow-up MRI scan.

Luckett E.S., Zielonka M., Kordjani A., Schaeverbeke J., Adamczuk K., De Meyer S., Van Laere K., Dupont P., Cleynen I, & Vandenberghe R. (2023). Longitudinal APOE4- and amyloid-dependent changes in the blood transcriptome in cognitively intact older adults. Alzheimer's Research & Therapy, 15, 121.

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Structural MRI Scanning Protocol for PET

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A high resolution T1-weighted structural MRI was acquired at baseline and follow-up for the PET processing procedure described in Section 2.2.3. Scans were performed using a 3 T Philips Achieva dstream 32-channel headcoil MRI scanner (Philips, Best, The Netherlands). All baseline scans and 65 follow-up scans were acquired using a 3D turbo field echo sequence: inversion time = 900 ms; repetition time = 9.6 ms; echo time = 4.6 ms; flip angle = 8^◦; field of view = 250 × 250 mm; 182 slices; voxel size 0.98 × 0.98 × 1.2 mm³. Twenty-two follow-up scans were acquired using a 3D magnetisation-prepared rapid gradient-echo sequence as they were acquired as part of the Amyloid imaging to prevent Alzheimer’s disease study (AMYPAD): repetition time = 6.6 ms; echo time = 3.1 ms; flip angle = 9^◦; field of view = 270 × 252 mm; 170 slices; voxel size 1.05 × 1.05 × 1.2 mm³. Three individuals refused a follow-up MRI scan.

Luckett E.S., Schaeverbeke J., De Meyer S., Adamczuk K., Van Laere K., Dupont P, & Vandenberghe R. (2023). Longitudinal changes in 18F-Flutemetamol amyloid load in cognitively intact APOE4 carriers versus noncarriers: Methodological considerations. NeuroImage : Clinical, 37, 103321.

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