Regional impact of field strength on voxel-based morphometry results.

  title={Regional impact of field strength on voxel-based morphometry results.},
  author={Christine L. Tardif and D. Louis Collins and G. Bruce Pike},
  journal={Human brain mapping},
  volume={31 7},
The objective of this study was to characterize the sensitivity of voxel-based morphometry (VBM) results to choice field strength. We chose to investigate the two most widespread acquisition sequences for VBM, FLASH and MP-RAGE, at 1.5 and 3 T. We first evaluated image quality of the four acquisition protocols in terms of SNR and image uniformity. We then performed a VBM study on eight subjects scanned twice using the four protocols to evaluate differences in grey matter (GM) density and… CONTINUE READING

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