Abstract #0875
Image-based respiratory motion compensation for CMRA in patients with coronary artery disease
Markus Henningsson 1 , Kostas Bratis 1 , Eike Nagel 1 , and Rene Botnar 1
1
Division of Imaging Sciences and Biomedical
Engineering, King's College London, London, United
Kingdom
Respiratory motion remains a major impediment in a
substantial amount of patients undergoing coronary
magnetic resonance angiography. In this work, we show
preliminary clinical results from an inline
implementation of image-based respiratory motion
correction and gating in 25 patients with coronary
artery disease. The motion compensation consisted of
left-right and foot-head translational correction and
diminishing variance gating assuming 50% scan
efficiency. The images were compared to gold standard CT
and X-ray and yielded a per vessel specificity of 92%
and sensitivity of 98%, and per patient specificity of
86% and sensitivity of 94%.
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