A New Self-Gating Method for Cardiac-MRI Using Phase Information

Cardiac and respiratory motions cause severe motion artifacts in cardiac MR (CMR) images. In order to avoid the motion artifacts, additional devices of ECG and respiratory-belt gating for detection of cardiac and respiratory motions, respectively, are commonly attached. However, preparation time to set up these additional gating devices and discomfort of patients during imaging are burden for clinical applications. In this work, a novel self-gating (SG) method using the phase information of MR signal in aorta for cardiac gating and in body for respiratory gating is proposed which successfully reconstructs the CMR images.

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