Abstract #0177
Coronary Endothelial Function Assessment Using Self-Gated Cardiac Cine MRI with golden angle acquisition and k-t Sparse SENSE
Jerome Yerly 1,2 , Giulia Ginami 1,2 , Giovanna Nordio 1,2 , and Matthias Stuber 1,2
1
Department of Radiology, University Hospital
(CHUV) and University of Lausanne (UNIL), Lausanne,
Switzerland,
2
Center
for Biomedical Imaging (CIBM), Lausanne, Switzerland
Coronary endothelial function (CEF) can be assessed
non-invasively by measuring the vasodilatation of the
coronary arteries in response to isometric handgrip
exercise using bright blood cine MRI. However, cine MRI
requires an external ECG signal to synchronize the data
acquisition, which can be challenging to obtain in
patients at high field strength. To address this hurdle,
we propose a cardiac self-gated technique that combines
golden angle radial acquisition with k-t sparse SENSE to
reconstruct cardiac cine images without ECG. We
demonstrate that our framework can accurately assess CEF
and provide results equivalent to those of the standard
ECG-gated technique.
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