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.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Click here for more information on becoming a member.
