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Towards a generalization of the MP2RAGE partial volume estimation model to account for B1+inhomogeneities at 7T

Authors :
Giulio Gambarota
Parnesh Raniga
Oscar Acosta
J. Beaumont
Jurgen Fripp
Laboratoire Traitement du Signal et de l'Image (LTSI)
Université de Rennes 1 (UR1)
Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM)
CRLCC Eugène Marquis (CRLCC)
Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO)
Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Source :
18th IEEE International Symposium on Biomedical Imaging, ISBI 2021, 18th IEEE International Symposium on Biomedical Imaging, ISBI 2021, Apr 2021, Nice, France. pp.1206-1209, ⟨10.1109/ISBI48211.2021.9434089⟩, ISBI
Publication Year :
2021
Publisher :
HAL CCSD, 2021.

Abstract

International audience; Brain morphometry performed with magnetic resonance (MR) imaging is affected by partial volume (PV) effects when single voxels contain the signal from two different tissues. This paper proposes a generalization of the MP2 RAGE sequence PV estimation model which accounts for transmitted magnetic field (B1 {+}) inhomogeneities at 7T. Our simulation experiments demonstrated that the PV estimation error of the proposed model is significantly lower than the error obtained with the same model neglecting B1 {+} inhomogeneities (p

Details

Language :
English
Database :
OpenAIRE
Journal :
18th IEEE International Symposium on Biomedical Imaging, ISBI 2021, 18th IEEE International Symposium on Biomedical Imaging, ISBI 2021, Apr 2021, Nice, France. pp.1206-1209, ⟨10.1109/ISBI48211.2021.9434089⟩, ISBI
Accession number :
edsair.doi.dedup.....04ab1224faa43e2a18df1612b83ebc65