Abstract #0466

Free breathing self-gated PC-MRI with Pseudo Random sampled kt-Sparse-Sense

Volker Herold¹, Patrick Winter¹, Philipp Mörchel², Fabian Gutjahr¹, and Peter Michael Jakob¹

¹Department of Experimental Physics 5, University of Wuerzburg, Wuerzburg, Germany, ²Research Center for Magnetic Resonance Bavaria e.V., Wuerzburg, Germany

Phase-Contrast (PC) cine MRI is an established method for the assessment of blood flow and tissue motion patterns in cardiovascular MRI. In this paper we presented a highly accelerated self-gated PC-MRI-sequence based on free breathing random sampled data acquisition. Data acquired during respiratory motion as well as any other source of undesirable motion can be excluded from the post-processing. Moreover ECG-signal acquisition which is prone to distortions especially at higher field strength can be avoided. The high flexibility of data processing would also allow the correction of unstable heart rate during the measurement.

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