Fig. 7
From: Hyperpolarized 13C urea myocardial first-pass perfusion imaging using velocity-selective excitation
Analysis of semi-quantitative myocardial perfusion measures (pCNR, AUC, upslope) extracted from 6 sector AHA segmentation in six animals. 1H gadolinium, 13C urea velocity-selective excitation and 13C urea conventional excitation measurements were performed for each animal during maintained dobutamine administration. (a) Coefficient of Variance of semi-quantitative perfusion measures over the 6 myocardial AHA sectors (mean +/− std). (b) Absolute peak SNR of LV blood pool signal. (c) Absolute peak myocardial contrast-to-noise ratio for each modality (mean +/− std). n.s.: not significant, *: P < 0.05