Meeting Banner
Abstract #2890

A fast navigator (fastNAV) for prospective respiratory motion correction in first-pass myocardial perfusion imaging

Ronald Mooiweer1, Radhouene Neji2, Sarah McElroy1, Muhummad Sohaib Nazir1, Reza Razavi1, Amedeo Chiribiri1, and S├ębastien Roujol1
1School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2MR Research Collaborations, Siemens Healthcare, Frimley, United Kingdom

A fast respiratory navigator (fastNAV) was developed for dynamic contrast enhanced CMR perfusion imaging by combining spatially non-selective saturation with slice-selective tip-up and slice-selective excitation pulses. A calibration scan was developed to enable the estimation of subject-specific tracking factors. Prospective motion correction using fastNAV was applied to perfusion imaging in 10 patients under free-breathing conditions. Compared to conventional perfusion imaging, fastNAV reduced the effect of respiratory motion while no difference in image quality was observed.

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

Join Here