Index by author
Uettwiller, M.
- FELLOWS' JOURNAL CLUBSPINEOpen AccessCervical Spinal Cord DTI Is Improved by Reduced FOV with Specific Balance between the Number of Diffusion Gradient Directions and AveragesA. Crombe, N. Alberti, B. Hiba, M. Uettwiller, V. Dousset and T. TourdiasAmerican Journal of Neuroradiology November 2016, 37 (11) 2163-2170; DOI: https://doi.org/10.3174/ajnr.A4850
The authors evaluated multiple parameters of reduced-FOV DTI to optimize image quality. Fifteen healthy individuals underwent cervical spinal cord 3T MRI, including an anatomic 3D Multi-Echo Recombined Gradient Echo, high-resolution full-FOV DTI with a NEX of 3 and 20 diffusion gradient directions, and 5 sets of reduced-FOV DTIs differently balanced in terms of NEX/number of diffusion gradient directions. Qualitatively, reduced-FOV DTI sequences with a NEX of >5 were significantly better rated than the full-FOV DTI and the reduced-FOV DTI with low NEX (N=3) and a high number of diffusion gradient directions (D=20). Quantitatively, the best trade-off was reached by the reduced-FOV DTI with a NEX of 9 and 9 diffusion gradient directions. They conclude that the best compromise was obtained with a NEX of 9 and 9 diffusion gradient directions, which emphasizes the need for increasing the NEX at the expense of the number of diffusion gradient directions for spinal cord DTI, unlike brain imaging.
Ursino, M.
- EXTRACRANIAL VASCULAROpen AccessValidation of a Hemodynamic Model for the Study of the Cerebral Venous Outflow System Using MR Imaging and Echo-Color Doppler DataG. Gadda, A. Taibi, F. Sisini, M. Gambaccini, S.K. Sethi, D.T. Utriainen, E.M. Haacke, P. Zamboni and M. UrsinoAmerican Journal of Neuroradiology November 2016, 37 (11) 2100-2109; DOI: https://doi.org/10.3174/ajnr.A4860
Utriainen, D.T.
- EXTRACRANIAL VASCULAROpen AccessValidation of a Hemodynamic Model for the Study of the Cerebral Venous Outflow System Using MR Imaging and Echo-Color Doppler DataG. Gadda, A. Taibi, F. Sisini, M. Gambaccini, S.K. Sethi, D.T. Utriainen, E.M. Haacke, P. Zamboni and M. UrsinoAmerican Journal of Neuroradiology November 2016, 37 (11) 2100-2109; DOI: https://doi.org/10.3174/ajnr.A4860