Abstract #1073

An Iterative Approach to Respiratory Self-Navigation Allows for Improved Image Quality and 100% Scan Efficiency in Contrast-Enhanced Inversion-Recovery Whole-Heart Coronary MRA at 3T; a First Patient Study

Giulia Ginami¹, Davide Piccini^1,2, Pierre Monney³, Pier Giorgio Masci³, and Matthias Stuber^1,4

¹University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ²Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland, ³Division of Cardiology and Cardiac MR Center, University Hospital of Lausanne (CHUV), Lausanne, Switzerland, ⁴Center for Biomedical Imaging (CIBM), Lausanne, Switzerland

The performance of Self-Navigation (SN) for respiratory motion compensation in 3T whole-heart coronary MRA may be compromised by contrast variations secondary to slow-infusion of a contrast agent. In this study, we quantitatively and successfully tested the hypothesis that an Iterative approach to SN (IT-SN) leads to improved performance during slow infusion.

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