Table 1 MRI sequences for brain scan
Sequences for Philips MRI Scanner | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Body Region: Head, Patient Position: Supine, Patient Entry: Head First, Landmark on Eyes | |||||||||
3 plane localizer | Reference Scan | AX SE T1 | AX FSE T2 | T2 FLAIR | Diffusion | 3D TOF MT | CE-MRA | Perfusion | |
Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | Landmark on Eyes | |
Name Anatomy Philips | Head CNS-Brain | Ref Scans | Head CNS-Brain | Head CNS-Brain | Head CNS-Brain | Head CNS-Function | Head CNS-Angio | Head CNS-CE-Angio | Head CNS-Function |
Sequence Name Philips | survey | RefScan | T1W_SE | T2W_TSE | T2W_FLAIR | DWI_E | S3DI_MC_HR | 3D_DYN_AVM | sPRESTO |
plane | ax/cor/sag | - | ax | ax | ax | ax | ax | sag | ax |
Scan time | 0:17 | 0:51 | 02:39 | 02:13 | 03:18 | 00:36 | 02:52 | 00:51 | 0:50 |
stacks | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
slices | 3 each | 82 | 18 | 18 | 16 | 18 | 100 | 10 | 30 |
Scan technique | T1-TFE | SENSE | SE | SE | IR | SE | FFE | FFE | FFE |
Fast imaging mode | TFE | - | MS | TSE | TSE | EPI | none | none | EPI |
(Turbo/EPI) Factor | 42 | - | 1 | 19 | 23 | 89 | - | - | 19 |
TE [ms] | 5.2 | 0.95 | 15 | 100 | 120 | 104 | 6.9 | 1.27 | shortest |
TR [ms] | 15 | 8 | 483 | 3607 | 6000 | 3034 | 24 | 5 | 22 |
TI [ms] | - | - | - | - | 2000 | - | - | - | - |
Flip angle [deg] | 20 | 7 | 140 | 90 | 100 | 90 | 20 | 35 | 7 |
FOV [mm] | 250 | - | 230 | 230 | 230 | 230 | 200 | 260 | 220 |
Scan [%] | 74 | 82 | 79 | 74 | 68 | 79.6 | 57.4 | 100 | 55.8 |
Scan matrix | 256 x 126 | 64 x 52 | 256 x 163 | 384 x 228 | 208 x 115 | 112 x 89 | 332 x 190 | 160 x 144 | 64 x 29 |
Slice thickness [mm] acq/rec | 10 | - | 5 | 5 | 6 | 5 | 1 / 0.5 | 16 / 8 | 3.5 |
Slice gap | 0 | 1 | 1 | 2 | 1 | - | - | - | |
NSA / NEX | 1 | 3 | 2 | 3 | 2 | 1 | 1 | 1 | 1 |
Bandwidth [Hz/pixel] | 186.9 | 2540.7 | 109.3 | 224.0 | 152.9 | 1834 | 108.8 | 541.1 | 60.3 |