Respiratory self-gating with PROPELLER encoding: Application to free-breathing cardiac imaging
Huang T, Liu Y, Juan C, Chen C, Poncelet B, Kwong K
National Taiwan University of Science and Technology
For the clinical cardiac MR imaging application, patients are generally required to hold their breath during the scan to minimize the motion-related artifacts. The PROPELLER encoding method can reconstruct a low-resolution image, which can be used to extract respiratory trace, from every single blade due to k-space center oversampling. In this study, we investigated the possibility of extracting respiratory motion trace with the low-resolution images acquired by PROPELLER encoding for the application of free-breathing high resolution cardiac imaging.