Both respiratory and cardiac motions devastate the quality and reliability of medical imaging specifically in nuclear medicine\nimaging.Motion artifacts can be eliminated by gating the image acquisition based on the respiratory phase and cardiac contractions\nmedical imaging. Electrocardiography (ECG), 3-axis accelerometer, and respiration belt data were processed and analyzed fromten\nhealthy volunteers. Seismocardiography (SCG) is a noninvasive accelerometer-based method that measures accelerations caused\nby respiration and myocardial movements. This study was conducted to investigate the feasibility of the accelerometer-based the\nmethod in dual gating technique.The SCG provides accelerometer derived respiratory (ADR) data and accurate information about\nquiescent phases within the cardiac cycle. The correct information about the status of ventricles and atria helps us to create an\nimproved estimate for quiescent phases within a cardiac cycle. The correlation of ADR signals with the reference respiration belt\nwas investigated using Pearson correlation. High linear correlation was observed between accelerometer-based measurement and\nreference measurement methods (ECGand respiration belt). Above all, due to the simplicity of the proposedmethod, the technique\nhas high potential to be applied in dual gating in clinical cardiac positron emission tomography (PET) to obtain motion-free images\nin the future.
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