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Table 1 Signal to noise ratio and T1/R1 values at baseline, immediately, 15 and 30 minutes after the infusion of MnCl2 using different sequences.

From: Preliminary assessment of cardiac short term safety and efficacy of manganese chloride for cardiovascular magnetic resonance in humans

Variable Pre 0 min 15 min 30 min P
GRE-IR 2D 6.6 ± 4.2 11.3 ± 4.1 10.8 ± 4.0 10.6 ± 5.2 < 0.0001
GRE-IR 3D 9.7 ± 5.3 15.0 ± 8.7 16.9 ± 10.2 16.5 ± 8.3 < 0.001
IR-SSFP 10.7 ± 4.2 12.8 ± 4.2 11.5 ± 2.4 12.7 ± 2.5 0.16
Phase Sensitive IR 13.5 ± 3.0 16.3 ± 3.9 15.9 ± 4.2 14.6 ± 3.6 0.02
T1 (ms) 839 ± 281 684 ± 99 714 ± 168 706 ± 172 0.003
R1 (Hz) 1.32 ± 0.46 1.50 ± 0.24 1.47 ± 0.34 1.50 ± 0.39 0.02
  1. GRE-IR = gradient-echo inversion recovery; SSFP = steady-state free precession
  2. Data represents mean ± SD