Abstract #1212

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

Mario Bacher^1,2, 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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