Figure 2
From: Selection of sampling points for saturation recovery based myocardial T1 mapping
Results of in-vivo imaging for five healthy subjects using the proposed and uniform sampling strategies, where each acquisition was repeated 5 times. T1est is reported as the mean ± std of the average T1 values in the ROI across 5 scans, as a surrogate for accuracy and inter-scan reproducibility. The std(T1est) is reported as the mean ± std of the std of the T1 values in the ROI across 5 scans, as a surrogate for the precision within the scan. Std wrt. uniform is the ratio of the mean values of std(T1est) using the proposed and uniform point selection, as a surrogate for the percentage gain in precision. The standard deviation of the T1 estimator in the myocardium and blood was reduced by 23.6% and 26.8% respectively using the proposed approach.