Fig. 3
From: CMR-based blood oximetry via multi-parametric estimation using multiple T2 measurements
Setup for animal hypoxemia experiment. Each animal was allowed to inspire different concentrations of oxygen (FiO 2). At each level of FiO 2, arterial and venous blood O2 saturation were measured by invasive catheter sampling and blood gas analysis before and after the acquisition of CMR data. Blood T2 was measured in the ventricles by means of T2 maps. Blood T2 measured in the right and left ventricles, along with hematocrit and arterial O2 saturation, were then analyzed for each data set to determine venous O2 sat in the right ventricle