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Abstract #1212

Retrospective Analysis of Pilot Tone Derived Cardiac and Respiratory Motion Information in a Patient Cohort

Mario Bacher1,2, Lorenzo Di Sopra1, Peter Speier2, Davide Piccini3, Anna-Giulia Pavon1, Christopher Roy1, Juerg Schwitter1, Jérôme Yerly1, and Matthias Stuber1
1Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland, 2Siemens Healthineers, Erlangen, Germany, 3Siemens Healthineers, Lausanne, Switzerland

The Pilot Tone is a novel motion sensing method capable of simultaneous, sequence independent measurement of respiratory and cardiac motion. Here, we show that Pilot Tone motion data can be used as an alternative to self-gating in a free-breathing, cardiac- and respiration resolved CMRI sequence. We demonstrate in a patient cohort that Pilot Tone motion information correlates well with ECG ground-truth and self-gating respiratory signals.

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