Budde, J., Shajan, G. , Hoffmann, J., Uğurbil, K. and Pohmann, R. (2011) Human imaging at 9.4 T using T2*-, phase-, and susceptibility-weighted contrast. Magnetic Resonance in Medicine, 65(2), pp. 544-550. (doi: 10.1002/mrm.22632) (PMID:20872858)
Full text not currently available from Enlighten.
Abstract
The effect of susceptibility differences on an MR image is known to increase with field strength. Magnetic field inhomogeneities within the voxels influence the apparent transverse relaxation time T2*, while effects due to different precession frequencies between voxels caused by local field variations are evident in the image phase, and susceptibility-weighted imaging highlights the veins and deep brain structures. Here, these three contrast mechanisms are examined at a field strength of 9.4 T. The T2* maps generated allow the identification of white matter structures not visible in conventional images. Phase images with in-plane resolutions down to 130 μm were obtained, showing high gray/white matter contrast and allowing the identification of internal cortical structures. The susceptibility-weighted images yield excellent visibility of small venous structures and attain an in-plane resolution of 175 μm.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Gunamony, Dr Shajan |
| Authors: | Budde, J., Shajan, G., Hoffmann, J., Uğurbil, K., and Pohmann, R. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | Magnetic Resonance in Medicine |
| Publisher: | Wiley |
| ISSN: | 0740-3194 |
| ISSN (Online): | 1522-2594 |
| Published Online: | 24 September 2010 |
University Staff: Request a correction | Enlighten Editors: Update this record
Deposit and Record Details
Deposit and Record Details