Table 2 Measured residual longitudinal magnetization (MZ/M0) at 3 T in 3 human subjects
From: Saturation pulse design for quantitative myocardial T1 mapping
Residual longitudinal magnetization [%] | ||||||
|---|---|---|---|---|---|---|
\( {\widehat{B}}_1 \) scale factor | 90°-90°-90° | 1.5 T 4-pulse train | 3 T 6-pulse train | Reference BIR4-90 | Optimized BIR4-90 | |
LV myocardium | 0.87 ± 0.21 | 3.5 ± 2.3 | 3.4 ± 0.5 | 1.8 ± 0.3 | 6.1 ± 3.1 | 2.8 ± 1.1 |
LV blood pool | 0.94 ± 0.19 | 0.5 ± 1.1 | 2.1 ± 1.7 | 0.6 ± 0.1 | 2.5 ± 2.3 | 0.8 ± 0.3 |
RV blood pool | 0.86 ± 0.12 | 7.5 ± 7.5 | 0.8 ± 0.5 | 0.6 ± 0.1 | 10.6 ± 7.5 | 2.3 ± 2.2 |