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Abstract #2140

Wave-balanced Steady State Free Precession (Wave-bSSFP) for free breathing cardiac MR angiography

Quentin Lebret1,2,3, Pierre Bour1,2,3, Valéry Ozenne1,2,3, and Bruno Quesson1,2,3
1IHU LIRYC, Fondation Bordeaux Université, Pessac, France, 2U1045 CRCTB, Université de Bordeaux, Bordeaux, France, 3INSERM, CRCTB, U1045, Bordeaux, France

Using Wave-CAIPI-like techniques to accelerate Balanced Steady-state Free Precession (bSSFP) sequences is a new parallel imaging technique that reduces the noise levels on the reconstructed image compared to conventional parallel imaging. On the heart, this combination of sequence has not been tested. The experiments show that the movements of the thorax are not an issue, as long as a respiratory and ECG triggering are employed. A retrospective acceleration of 5.4 on a sheep heart image with a 1.4mm isotropic resolution has been achieved.

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