Table 2.
Acquisition Parameters for Diffusion-Weighted Magnetic Resonance Imaging (dMRI)
| GE | Siemens | Philips | |
|---|---|---|---|
| Orientation | Axial | Axial | Axial |
| Phase encoding direction | Left/right | Anterior/posterior | Posterior/anterior |
| Field of view (in mm) | 256 | 256 | 256 |
| TE | 83ms | 87ms | 73 ms |
| TR | 10s | 10s | 10 sec |
| Number of directions | 64 | 64 | 64 |
| b-value | 900 | 900 | 900 |
| Number of b0 | 7 | 7 | 7 |
| Resolution matrix | 128x128 | 128x128 | 128x128 |
| Voxel size (in mm3) | 2x2x2 | 2x2x2 | 2x2x2 |
| Number of slices | 73 | 73 | 73 |
| Acquisition time (in min) | 14:40 | 14:08 | 14:21 |
Multi-site study; dMRI data acquisition on Tim Trio, Siemens Healthineers, Erlangen, Germany; GE 750, GE Healthcare, Chicago, IL, USA; Achieva, Philips Healthcare, Best, The Netherlands.
TE, echo time; TR, repetition time.