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Abstract #4460

Influence of Temporal Sampling on Reproducibility of Radiomics Features in Cardiac Cine MRI

Ann Laube1,2, Matthias Ivantsits1, Markus Hüllebrand1,3, Lennart Tautz3, Léa Ter-Minassian4, Hannu Zhang4, Patrick Doeblin2,5, Sebastian Kelle2,5, and Anja Hennemuth1,2,3,6
1Institute for Computer-assisted Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany, 2DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany, 3Fraunhofer MEVIS, Bremen, Germany, 4Charité - Universitätsmedizin Berlin, Berlin, Germany, 5Deutsches Herzzentrum Berlin, Berlin, Germany, 6University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Synopsis

Keywords: Heart, Radiomics, ReproducibilityRadiomics has been applied in cardiovascular imaging with promising results. Still, the effect of imaging parameters on the reproducibility of radiomics features needs to be well understood for these to be used in clinical diagnostics. We conduct a retrospective study on short-axis cine CMR images of healthy volunteers to assess the impact of different temporal sampling parameters on the reproducibility of shape, first-order, texture, and deformation field-based features, and contextualize the findings with inter- and intra-observer variability. We find that the reproducibility of features is dependent on temporal sampling, warranting the introduction of parameter standardization for radiomics analyses.

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