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Abstract #2197

Quantitative sodium imaging in the carotid and aorta

Chang Sun1, Mary A McLean2, Titus Lanz3, Frank Riemer4, Rolf F Schulte5, Fiona J Gilbert1, Martin J Graves6, and Joshua D Kaggie1
1Department of Radiology, University of Cambridge, Cambridge, United Kingdom, 2Cancer Research UK, Cambridge, United Kingdom, 3Rapid Biomedical GmbH, Rimpar, Germany, 4Department of Radiology, Haukeland University Hospital, Bergen, Norway, 5GE Healthcare, Munich, Germany, 6Cambridge University Hospital, Cambridge, United Kingdom

Carotid and aortic sodium MR images were acquired from four healthy volunteers, using a 3D cones trajectory and a birdcage sodium transmit/receive coil. Vascular structures such as the carotid bifurcation and aortic arch were observed in the sodium images. T1 maps were estimated via the variable flip angle fitting method. B1 maps were estimated with the dual angle method. Sodium concentration was estimated using a linear model with two fiducials as the reference. The results show sodium MR imaging can provide non-invasive and quantitative measurements of the sodium concentration near possible locations of vascular diseases.

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