Evaluation of Coil Selection Algorithms for Body Navigators

Anja Brau¹, Yuji Iwadate²

Respiratory navigator techniques rely on the processing algorithm to accurately extract motion information from the navigator echo. When using a multi-channel receive coil, the selection of which channel to use can influence the success of the navigator processing algorithm. By selecting a subset of channels, the coil sensitivity modulation of the navigator signal can be exploited to enhance the prominence of features of interest while also improving real-time processing efficiency. In this work, we evaluate the suitability of different coil selection methods for use with navigator processing and propose a method based on a matched filter.