Abstract #2382
Fast Low-Angle B1 Mapping
Caroline Le Ster 1,2 , Giulio Gambarota 1 , Eric Brillet 3 , Olivier Beuf 4 , and Herv Saint-Jalmes 1,5
1
INSERM UMR 1099, Universit de Rennes 1,
Rennes, France,
2
Siemens
Healthcare, Saint-Denis, France,
3
Department
of Imaging, Rennes University Hospital, Rennes, France,
4
Universit
de Lyon, CREATIS, CNRS UMR 5220, INSERM U1044,
INSA-Lyon, Universit Lyon 1, Villeurbanne, France,
5
Centre
Eugne Marquis, CRLCC, Rennes, France
Quantitative MR methods often require the knowledge of
the local B1 field. Many B1 mapping methods have been
developed, but few of them are suited to measure low
flip angles. Here we use the Low Angle Method1 coupled
with EPI (LAM EPI) to acquire multislice B1 maps on a
phantom and in vivo on the brain and the abdomen
(breathold acquisition). We compare our results to the
reference B1 mapping Double Angle Method (DAM) and the
classical LAM method (LAM FLASH).
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