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Abstract #1972

Feasibility Study of a Double Self-gating Technique for Free-breathing Time-resolved 3D Imaging

Li D, nielles-vallespin S, Larson A, Lai P
Northwestern University

This work aimed to investigate the feasibility of a double self-gating (DSG, respiratory self-gating + cardiac self-gating) technique for applications requiring free-breathing time-resolved 3D imaging. A new 2-projection method capable of accurate heart displacement measurement is also proposed. Both respiratory and cardiac gating signal were derived from direct measurement of the heart. Our preliminary results showed the potential of using this DSG scheme for suppressing both respiratory and cardiac motion artefacts.