Abstract #0079

Automated compensation of respiratory motion and bulk patient movement in free-running whole-heart 4D MRI

Christopher W Roy¹, Jérôme Yerly^1,2, Milan Prša³, Estelle Tenisch¹, Tobias Rutz⁴, Davide Piccini^1,5, and Matthias Stuber^1,2

¹Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ²CIBM Center for Biomedical Imaging, Lausanne, Switzerland, ³Woman-Mother-Child, Pediatric Cardiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ⁴Cardiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ⁵Advanced Clinical Imaging Technology (ACIT), Siemens Healthcare AG, Lausanne, Switzerland

Synopsis

A novel methodology for whole-heart 4D MRI with retrospective compensation of both respiratory motion and bulk patient movement is developed and its initial feasibility demonstrated. This approach enables imaging with high isotropic resolution and allows for retrospective evaluation of the dynamic cardiac anatomy creating a new way to significantly improve image quality in un-cooperative patients and potentially decreasing the need for sedation.

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