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Abstract #2456

Intrinsic motion correction for radial cardiac T 2 mapping through alternating T 2 preparation duration

Helene Feliciano 1,2 , Matthias Stuber 1,2 , and Ruud B. van Heeswijk 1,2

1 Radiology, University Hospital (CHUV), and University of Lausanne (UNIL), Lausanne, Switzerland, 2 Center for Biomedical Imaging (CIBM), Lausanne, Switzerland

A radial T 2 mapping sequence that makes use of a cyclically alternating T 2 Prep was developed at 3T to avoid the adverse effects of respiratory or RR variability on T 2 quantification. Bloch simulations and phantom experiments were performed to compare the thus obtained T 2 maps with that of a standard sequential T 2 mapping approach. In 9 healthy volunteers it was confirmed that more robust T 2 mapping is obtained with alternating T 2 preparation.

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