Abstract #0351

Free-running Fast-Interrupted Steady-State 5D whole-heart MRI of congenital heart disease patients without the use of contrast agents

Christopher W Roy¹, Tobias Rutz², Juerg Schwitter^2,3, Jérôme Yerly^1,4, and Matthias Stuber^1,4

¹Department of Diagnostic and Interventional Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ²Service of Cardiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Rue de Bugnon 46, BH-8-84, 1011 Lausanne, Switzerland, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ³Cardiac MR Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland, ⁴Center for Bio-medical Imaging (CIBM), Lausanne, Switzerland

Synopsis

Keywords: Myocardium, Cardiovascular

Motivation: Easy-to-use and time-efficient whole-heart imaging that can be performed, without the need for contrast agents, remains an unmet need in the evaluation of congenital heart disease patients.

Goal(s): To demonstrate the feasibility of native contrast 5D FISS CMR and compare it to established 2D and 3D methods in CHD patients.

Approach: Contrast and sharpness measurements from 2D and 3D CMR are quantitatively compared to those from 5D FISS.

Results: 5D FISS CMR with native contrast in a fixed six-minute scan time provides comparable images to standard 2D and 3D CMR building towards a simplified method for evaluating CHD without contrast agents.

Impact: Free-running Fast-Interrupted Steady-State 5D whole-heart MRI enables the evaluation of the cardiac anatomy in patients with congenital heart disease within a fixed six-minute scan time and without contrast agents.

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