Meeting Banner
Abstract #4905

T2*-mapping of the mouse brain at 7T with a 3D Multi Gradient Echo Sequence.

Nicolas SIMONNEAU1, Aurélien TROTIER1, Elise COSENZA2, Laurent PETIT2, Emeline J RIBOT1, and Sylvain MIRAUX1
1CRMSB, CNRS, Bordeaux, France, 2GIN-IMN, CNRS, Bordeaux, France

Synopsis

Keywords: Small Animals, Relaxometry

Motivation: Measuring T2* in mouse brains may therefore be of interest in assessing pathological models or innovative treatments directed against these pathologies.

Goal(s): The goal of this study was to obtain a high resolution and accurate T2* map of the mouse brain ex vivo and in vivo.

Approach: A 3D Multi Gradient Echo sequence with a drift compensation module was used and combined with an optimized fitting model which takes account the non-central chi distribution of the multi-channel gaussian noise.

Results: T2* map were obtained ex vivo and in vivo at 117 µm isotropic resolution in 20 minutes.

Impact: A high-resolution 3D Multi-Gradient Echo sequence sequence has been coupled with an optimized fitting algorithm to generate high resolution T2* map of the mouse brain. This method can be used to study preclinical stroke model.

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.

Keywords