Abstract #0487

Cardiac 31P MR Spectroscopy With Interleaved 1H Image Navigation for Prospective Respiratory Motion Compensation – Initial Results

Stefan Wampl^1,2, Tito Körner^1,2, Sigrun Roat^1,2, Michael Wolzt³, Ewald Moser^1,2, Siegfried Trattnig^2,4, Martin Meyerspeer^1,2, and Albrecht Ingo Schmid^1,2

¹Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria, ²MR Center of Excellence, Medical University of Vienna, Vienna, Austria, ³Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria, ⁴Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria

Cardiac phosphorus (³¹P) magnetic resonance spectroscopy (MRS) offers unique insights into the metabolism of the human heart. To further improve cardiac ³¹P MRS acquisitions, the implementation of a proton (¹H) magnetic resonance imaging (MRI) navigator into a ³¹P MRS pulse sequence using multinuclear interleaving is demonstrated. In this feasibility study we further apply a method to robustly detect the heart on low-resolution navigator images. Combined with multinuclear interleaving this facilitates time-efficient position updates of the ³¹P MRS voxel to prospectively correct for respiratory motion.

This abstract and the presentation materials are available to members only; a login is required.

Join Here