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Abstract #3953

Reference ranges for functional and volumetric CMR in pigs as pre-clinical model

Miriam Weisskopf 1, Melanie Hierweger1, Andrea Leuthardt 1, Nina Trimmel 1, Constantin von Deuster2,3, Maximilian Fuetterer3, Sebastian Kozerke3, and Christian T Stoeck1,3
1Center for Preclinical Development, University of Zurich and University Hospital Zurich, Zurich, Switzerland, 2Advanced Clinical Imaging Technology, Siemens Healthineers International AG, Zurich, Switzerland, 3Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

Synopsis

Keywords: Large Animals, Nonhuman Primates, Animals, CMR, pig

Motivation: Domestic pigs are frequently used as experimental animals for cardiovascular research but are subject to somatic growth.

Goal(s): To investigate the relationship of cardiac functional and volumetric parameters with animal somatic growth.

Approach: In this retrospective CMR study in 58 female Swiss large white pigs, we correlate functional volumetric and dimensional CMR parameters to animal weight.

Results: : Left ventricular mass, left and right ventricular volumes and stroke volumes correlate with animal weight. Weight-independent parameters were left and right ejection fractions. Our findings match values found in humans.

Impact: We provide a regression analysis of clinical functional, volumetric and dimensional CMR parameters for experimental planning and refinement of animal experiments in pigs and illustrate healthy parameter ranges.

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