Abstract #2640
Whole-Heart Free-Breathing Phase-Sensitive Inversion-Recovery Late Gadolinium Enhancement Imaging with High Isotropic Spatial Resolution Using Respiratory Self-Navigation: a First Patient Study
Davide Piccini 1,2 , Simone Coppo 2 , Giulia Ginami 2 , Gabriele Bonanno 2 , Tobias Rutz 3 , Gabriella Vincenti 3 , Juerg Schwitter 3 , and Matthias Stuber 2
1
Advanced Clinical Imaging Technology,
Siemens Healthcare IM BM PI, Lausanne, Switzerland,
2
Department
of Radiology, University Hospital (CHUV) and University
of Lausanne (UNIL) / Center for Biomedical Imaging
(CIBM), Lausanne, Switzerland,
3
Division
of Cardiology and Cardiac MR Center, University Hospital
of Lausanne (CHUV), Lausanne, Switzerland
Respiratory self-navigation (SN) for whole-heart MRI
provides 100% scan efficiency and increased ease of use
for the operator. The SN technique was combined with a
3D radial acquisition for phase sensitive inversion
recovery (3D-SN PSIR) imaging, featuring high motion and
undersampling robustness. Free-breathing 3D-SN PSIR was
compared to standard 2D breathhold PSIR imaging in
patients with positive late gadolinium enhancement
findings. Preliminary results show that free-breathing
3D-SN PSIR achieves robust nulling of healthy
myocardium, while preserving high-signal in fibrotic
tissue. Overall high diagnostic quality is preserved.
Such high-resolution isotropic scar definition could
allow for better planning of arrhythmia ablation
procedures.
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