Abstract #2885

A Comparison Study between the 2D Breath-holding and 3D Free-breathing approaches to in vivo Cardiac Quantitative Susceptibility Mapping

Yan Wen^1,2, Thanh Nguyen², Pascal Spincemaille², Jiwon Kim³, Jonathan W. Weinsaft⁴, and Yi Wang^1,2

¹Meinig School of Biomedical Engineering, Cornell University, New York, NY, United States, ²Radiology, Weill Cornell Medicine, New York, NY, United States, ³Medicine, Weill Cornell Medicine, NY, United States, ⁴Medicine, Weill Cornell Medicine

Our previous study showed that high quality in vivo cardiac susceptibility maps (QSM) can be obtain using a 2D breath-hold (2DBH) sequence. However, the 2DBH approach is vulnerable to slice misregistration caused by inconsistent breath-holds, which will cause artifacts in the resulting susceptibility maps. Here we introduce a 3D navigator gated sequence (3DNAV) which allows for free-breathing during acquisition, and compare it to the 2DBH approach.

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