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Abstract #1612

Feasibility of entire cardiac MRI examinations during free breathing using GRICS motion correction

Freddy Odille 1,2 , Bailiang Chen 1,2 , Anne Menini 1,2 , Pauline Ferry 1,2 , Marine Beaumont 2,3 , Jacques Felblinger 1,2 , and Laurent Bonnemains 1,2

1 U947, Inserm, Nancy, France, 2 IADI, Universit de Lorraine, Nancy, France, 3 CIC-IT 801, Inserm, Nancy, France

Cardiac MRI conventionally relies on a large number of breath holds. This is relatively inefficient as it results in a high scanner idle time and motion inconsistencies (misalignment between sequences). In this work we evaluate the feasibility and potential benefits of performing a whole cardiac examination during free-breathing using GRICS non-rigid motion correction. The approach was validated in 5 Duchenne muscular dystrophy patients with a cardiac protocol including free-breathing function (2D short-axis SSFP with whole heart coverage) and fibrosis assessment (post-contrast cine and 3D late enhancement). These preliminary results indicate diagnostic quality can be achieved along with good motion consistency.

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