Table 1 MRI sequence parameters of coronal and sagittal T2-weighted imaging within our regional muticentric cohort
Sequence parameter | St. Antonius Hospital, Utrecht (n = 61) | St. Antonius Hospital, Nieuwegein (n = 46) | Diakonessenhuis (n = 24) | UMCU (n = 17) | Rivierenland (n = 8) | Rivas Zorggroep (n = 8) |
|---|---|---|---|---|---|---|
MRI system | Siemens 3 T | Philips 3 T | Siemens 3 T | Philips 3 T | Siemens 1.5 T | Siemens 1.5 T |
Scan orientation | Coronal (oblique), sagittal | Coronal (oblique), sagittal | Coronal, sagittal | Coronal, sagittal | Coronal (oblique), sagittal | Coronal, sagittal |
TR (ms) | ||||||
Coronal | 5,000 | 2,915 | 7,500 | 3,000–5,500 | 4,640 | 7,500 |
Sagittal | 5,000 | 4,985 | 7,400 | 2,900–5,500 | 5,060 | 7,500 |
TE (ms) | ||||||
Coronal | 103 | 95 | 104 | 140 | 108 | 108 |
Sagittal | 103 | 95 | 104 | 110 | 87 | 108 |
Flip angle (°) | ||||||
Coronal | 150 | 90 | 160 | 90 | 160 | 160 |
Sagittal | 140 | 90 | 160 | 90 | 150 | 160 |
Slice thickness (mm) | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.5 |
Number of average | ||||||
Coronal | 2 | 2 | 3 | 2 | 2 | 3 |
Sagittal | 2 | 1 | 2 | 1 | 1 | 3 |
Number of slices | ||||||
Coronal | 24 | 26 | 25 | 38 | 30 | 20 |
Sagittal | 24 | 40 | 25 | 23 | 28 | 24 |
Reconstructed pixel size (mm × mm) | ||||||
Coronal | 0.63 × 0.63 | 0.39 × 0.39 | 0.27 × 0.27 | 0.47 × 0.47 | 0.68 × 0.68 | 0.63 × 0.63 |
Sagittal | 0.63 × 0.63 | 0.63 × 0.63 | 0.27 × 0.27 | 0.30 × 0.30 | 0.86 × 0.86 | 0.63 × 0.63 |
FOV (mm × mm) | ||||||
Coronal | 200 × 200 | 200 × 200 | 199 × 199 | 180 × 180 | 220 × 220 | 200 × 200 |
Sagittal | 200 × 200 | 180 × 180 | 199 × 199 | 260 × 260 | 220 × 220 | 200 × 200 |