Table 3.

T1-weighted image parameters from the six study sites

SiteManufacturerField strength, TImage dimensions, mmSlice thickness, mmTR, msTE, msFlip angle , deg
1Siemens1.5256 × 256×2000.80†25.004.6030‡
2GE3.0256 × 256×1241.209.002.0015
3Siemens3.0240 × 256×1760.902250*3.969
4Siemens3.0128 × 256×2561.336.002.908
5Siemens3.0256 × 256×1601.001600^3.3715
6Philips3.0256 × 256×1001.009.884.598
  • †0.8 mm gap.

  • ‡Five of 66 cases had TR= 30 and flip angle=35. Note that the long TRs for Sites 3 and 5 were due to the use of inversion recovery.

  • *Inversion time = 900.

  • ^Inversion time = 640.