Table I.
Description of hardware and sequences of the nine sites (10 scanners) participating in this study, five 1.5T scanners, four 3T scanners, and one 4T scanner
| Site code | Abbreviation | Field strength (T) | Manufacturer | RF coil type | Functional sequence |
|---|---|---|---|---|---|
| 1 | SITE 1 | 1.5 | GE Nvi LX | TR quadrature head | Spiral |
| 2 | SITE 2 | 1.5 | GE Signa CV/i | TR quadrature head | EPI |
| 3 | SITE 3 | 1.5 | Siemens Sonata | RO quadrature head | EPI |
| 4 | SITE 4 | 1.5 | Philips/Picker | RO quadrature head | EPI |
| 5 | SITE 5 | 1.5 | Siemens Symphony | TR quadrature head | EPI |
| 6 | SITE 6 | 3.0 | GE | GE TR research coil | EPI |
| 7 | SITE 7 | 3.0 | Siemens Trio | TR quadrature head | EPI ‐Dual Echo |
| 8 | SITE 8 | 3.0 | Siemens Trio | TR quadrature head | EPI |
| 9 | SITE 9 | 3.0 | GE CV/NVi | Elliptical quadrature head | Spiral in/out |
| 10 | SITE 10 | 4.0 | GE Nvi LX | TR quadrature head | Spiral |