Abstract #1794
A comparative study of two partial volume estimation methods with MP2RAGE data at 3T
Quentin Duch 1,2 , Parnesh Raniga 2,3 , Gary F. Egan 3 , Oscar Acosta 1 , Olivier Salvado 2 , Giulio Gambarota 1 , and Herv Saint-Jalmes 1
1
Universit de Rennes 1 - LTSI, Rennes,
France,
2
The
Australian e-Health Research Centre, CSIRO Preventative
Health Flagship, CSIRO Computational Informatics,
Herston, QLD, Australia,
3
Monash
Biomedical Imaging, Melbourne, VIC, Australia
Partial volume (PV) effects are an unavoidable artifact
in brain MRI. It may critically influence structural
measurements (volumes, cortical thickness) if not taken
into account. This study aims at comparing the
plebiscited PV estimation technique and the proposed
method on four MP2RAGE datasets. The experimental
results match with the simulations and show that the
plebiscited method tends to understimate GM in both
types of mixtures (GM/CSF and GM/WM). This implies a
global GM volume underestimation of 3.43% in average.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
