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Abstract #5013

Prospective Diaphragm Position Prediction for Cardiac MR Using Multiple Navigators

Ian Hamilton Burger1, Jennifer Keegan2,3, Ernesta Meintjes1, David Firmin2,3

1Human Biology, University of Cape Town, Cape Town, Western Cape, South Africa; 2CMR Unit, Royal Brompton Hospital Trust, London, United Kingdom; 3Imperial College London

Prediction of the diaphragm position during imaging segments by multiple navigators and a predictor estimator during the preceding systole. The control system compares the navigator records to a model and feeds back the difference between the model and recorded value to prevent the model from diverging. This data can then be used to improve prospective slice following and increase acceptance window and increase respiratory efficiency.