Quantitative Comparison of Left Ventricular Cardiac Volume, Mass and Function Obtained at 7 Tesla with gold Standard Values at 1.5 Tesla.

Anne Brants¹, Maarten Versluis¹, Albert de Roos¹, Jos Westenberg¹, Andrew Webb¹

Recent advances in coil technology have enabled cardiac imaging to be performed at 7T, with high spatial resolution cine-imaging showing particular promise. However, there has been no quantitative assessment of clinically-relevant derived measures of cardiac mass, volume or function. In this current study, ten healthy volunteers underwent cardiac scans at both 1.5T, the gold standard for such measures, and 7T. Values of end-systolic and end-diastolic volumes, ejection fraction, stroke volume an left ventricular end diastolic mass showed no statistical difference between 1.5 and 7T, providing strong validation for the continuing development of high-field cardiac imaging.