Correction of artifacts in diffusion-weighted MR images

0370945 - ÚPT 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Marcon, P. - Bartušek, Karel - Kořínek, Radim - Dokoupil, Zdeněk
Correction of artifacts in diffusion-weighted MR images.
34th International Conference on Telecommunications and Signal Processing - TSP 2011. Piscataway: IEEE, 2011, s. 391-397. ISBN 978-1-4577-1410-8.
[International Conference on Telecommunications and Signal Processing /34./ - TSP 2011. Budapest (HU), 18.08.2011-20.08.2011]
Grant CEP: GA MŠMT ED0017/01/01; GA ČR GAP102/11/0318
Výzkumný záměr: CEZ:AV0Z20650511
Klíčová slova: artifact * diffusion coefficient * eddy currents * gradient * magnetic resonance
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika

The authors describe the techniques for measuring diffusion coefficients and creating DWI and DTI images. In order to increase the accuracy of diffusion coefficient measurement, it is necessary to eliminate the influence of artifacts such as the influence of magnetic field inhomogeneity, eddy currents, or temperature. For these artifact sources, the article presents experimental detection of the magnitude of errors, which is realized using the three measurements method, and proposes correction possibilities. The results are compared with diffusion measurements at different sizes of 6-factors.
Trvalý link: http://hdl.handle.net/11104/0204616