Table 2.
NNIPPS imaging protocol for Parkinson's plus syndromes
Plane | Acquisition | Slice (mm) | Number slices | Film* | TR (ms) | TE (ms) | FOV (mm) | Matrix |
Sagittal | FGE T1 weighted | 5 | 16 | 1 | 250–512 | 14–16 | 230–240 | 512×(224–256) |
Axial bicallosal plane | FSE proton density | 3 | 40 | 2 | 5270–6000 | 12–20 | 230–240 | 256×(224–256) |
Axial bicallosal plane | FSE T2 weighted | 3 | 40 | 2 | 5270–6000 | 75–110 | 230–240 | 256×(224–256) |
Coronal orthogonal to the bicallosal plane | FSE T2 weighted | 3 | 40 | 2 | 4520–5200 | 96–110 | 230–240 | 512×(204–256) |
Axial† | 3D IR T1 weighted | 0.9 | 160 | 2‡ | 2500 IT=500 | Minimum | 230–230 | 256×256 |
Printed films contain 20 images each.
The whole cerebrum, including the cerebellum and brainstem, should be included.
Reconstruction of 20 slices at 5 mm thickness in the bicallosal plane, centred on the basal ganglia.
3D, three-dimensional; FGE, fast gradient echo; FOV, field of view; FSE, fast spin echo; IR, inversion recovery; NNIPPS, Neuroprotection and Natural History in Parkinson's Plus Syndromes; TE, echo time; TR, repetition time.