Research Article

Manganese-Enhanced T1 Mapping in the Myocardium of Normal and Infarcted Hearts

Table 2

Mean LVEF and mean difference in LVEF versus baseline for the cohort of healthy rats administered MnCl2, EVP1001-1, and mangafodipir.

Time point (minutes)Mean LVEF (%) and mean difference in LVEF (%)
Baseline153050

MnCl2 + saline67.5 ± 5.673.4 ± 6.372.4 ± 5.671.1 ± 2.0
Mean difference (vs. baseline)5.8 ± 1.34.9 ± 2.63.6 ± 5.1
MnCl2 + diltiazem65.0 ± 8.058.2 ± 3.958.3 ± 6.860.1 ± 12.5
Mean difference (vs. baseline)−3.2 ± 0.6−3.1 ± 2.6−4.8 ± 5.1
EVP1001-1 + saline65.3 ± 0.771.0 ± 5.567.1 ± 2.567.1 ± 3.8
Mean difference (vs. baseline)4.0 ± 6.8−0.3 ± 2.60.7 ± 5.5
EVP1001-1 + diltiazem69.6 ± 6.468.3 ± 8.463.4 ± 7.365.6 ± 7.8
Mean difference (vs. baseline)−0.5 ± 3.7−4.1 ± 4.0−4.1 ± 3.7
Mangafodipir 22 μmol/kg63.2 ± 6.366.9 ()65.8 ± 8.267.1 ± 7.4
Mean difference (vs. baseline)6.9 ()4.7 ± 7.12.5 ± 4.5
Mangafodipir 44 μmol/kg + Saline73.5 ± 3.176.8 ()76.1 ± 4.977.0 ± 4.1
Mean difference (vs. baseline)3.9 ()4.5 ± 1.14.6 ± 3.6
Mangafodipir 44 μmol/kg + diltiazem64.1 ± 4.864.0 ± 8.162.5 ± 7.362.0 ± 9.5
Mean difference (vs. baseline)0.81 ± 6.53−0.2 ± 6.9−1.0 ± 4.7

Group sizes for EVP1001-1 and mangafodipir 22 μmol/kg and for MnCl2 and mangafodipir 44 μmol/kg. Calculation of mean only from those time points with measurements available. Post hoc Bonferroni multiple comparisons significance at each time point as compared to saline control indicated by asterisk.