Abstract #0888
Non-Cartesian Retrospective Reconstruction of Cardiac Motion in Patients with Severe Arrhythmia
Francisco Contijoch 1 , Yuchi Han 1 , Michael Schacht Hansen 2 , James J Pilla 1 , Joseph H Gorman 1 , Robert C Gorman 1 , and Walter RT Witschey 1
1
University of Pennsylvania, Philadelphia,
PA, United States,
2
NHLBI,
NIH, Bethesda, MD, United States
Although cardiovascular magnetic resonance imaging (MRI)
is the gold standard for assessment of cardiac function,
image quality is compromised in patients with ectopy. We
sought to understand how ECG-gated retrospective
reconstruction fails despite arrhythmia rejection before
developing a retrospective reconstruction method using
cardiac self-gating on low spatial resolution images are
obtained from golden angle radial MRI data. Myocardial
systolic and diastolic motion was inferred from
segmented ventricular volumes and golden angle
projections were retrospectively reconstructed to obtain
high quality images. The effectiveness of the method was
evaluated in 2 patients with severe ventricular
arrhythmia.
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