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. Author manuscript; available in PMC: 2025 Aug 1.
Published in final edited form as: J Magn Reson. 2024 Jul 26;365:107741. doi: 10.1016/j.jmr.2024.107741

Table 2.

Impact of undersampling on Lung Parenchyma aT2* (ms). P value is < 0.001 for all correlations.

Mouse 100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
Mouse Sampled mean ±SD Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope Sampled mean ± SD R2, Slope
1 0.51 ± 0.16 0.51 ± 0.16 0.51 ± 0.16 0.51 ± 0.16 0.51 ± 0.16 0.51 ± 0.16 0.51 ± 0.16 0.52 ± 0.16 0.52 ± 0.16 0.53 ± 0.17
0.96, 0.968 0.923, 0.944 0.914, 0.934 0.87, 0.911 0.841, 0.874 0.761, 0.851 0.683, 0.816 0.574, 0.754 0.554, 0.747
2 0.49 ± 0.13 0.49 ± 0.13 0.49 ± 0.13 0.49 ± 0.13 0.49 ± 0.13 0.50 ± 0.14 0.50 ± 0.14 0.51 ± 0.14 0.52 ± 0.14 0.53 ± 0.15
0.986, 0.986 0.977, 0.971 0.963, 0.96 0.931, 0.924 0.903, 0.902 0.851, 0.888 0.773, 0.846 0.664, 0.802 0.524, 0.736
3 0.40 ± 0.10 0.40 ± 0.1 0.40 ± 0.10 0.40 ± 0.10 0.40 ± 0.10 0.40 ± 0.10 0.40 ± 0.10 0.41 ± 0.10 0.41 ± 0.10 0.41 ± 0.10
0.858, 0.96 0.912, 0.949 0.87, 0.931 0.901, 0.914 0.884, 0.884 0.825, 0.859 0.745, 0.801 0.64, 0.747 0.483, 0.682
4 0.38 ± 0.09 0.38 ± 0.09 0.38 ± 0.09 0.38 ± 0.0 0.38 ± 0.10 0.38 ± 0.10 0.38 ± 0.10 0.39 ± 0.11 0.39 ± 0.11 0.39 ± 0.11
0.242, 0.644 0.228, 0.636 0.231, 0.607 0.214, 0.594 0.214, 0.575 0.325, 0.603 0.299, 0.579 0.278, 0.546 0.224, 0.467
5 0.40 ± 0.10 0.40 ± 0.10 0.40 ± 0.10 0.40 ± 0.11 0.40 ± 0.11 0.40 ± 0.11 0.40 ± 0.11 0.41 ± 0.11 0.41 ± 0.12 0.41 ± 0.12
0.923, 0.975 0.927, 0.95 0.906, 0.922 0.884, 0.886 0.855, 0.849 0.805, 0.806 0.697, 0.744 0.617, 0.662 0.427, 0.544
6 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.46 ± 0.13 0.47 ± 0.14
0.987, 0.988 0.982, 0.975 0.967, 0.959 0.953, 0.944 0.921, 0.91 0.866, 0.885 0.816, 0.84 0.712, 0.799 0.588, 0.72
7 0.40 ± 0.10 0.44 ± 0.13 0.44 ± 0.10 0.44 ± 0.13 0.43 ± 0.10 0.44 ± 0.14 0.45 ± 0.11 0.45 ± 0.11 0.45 ± 0.11 0.45 ± 0.14
0.928, 0.953 0.91, 0.928 0.894, 0.903 0.858, 0.869 0.823, 0.831 0.754, 0.86 0.669, 0.731 0.555, 0.66 0.366, 0.549
8 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.13 0.44 ± 0.13 0.45 ± 0.13 0.45 ± 0.13
0.879, 0.945 0.871, 0.92 0.859, 0.894 0.839, 0.866 0.806, 0.835 0.752, 0.792 0.672, 0.746 0.563, 0.675 0.393, 0.567
9 0.42 ± 0.11 0.42 ± 0.11 0.42 ± 0.11 0.42 ± 0.11 0.42 ± 0.12 0.42 ± 0.12 0.42 ± 0.12 0.42 ± 0.12 0.43 ± 0.12 0.43 ± 0.13
0.816, 0.94 0.809, 0.926 0.813, 0.897 0.792, 0.87 0.756, 0.82 0.703, 0.789 0.598, 0.714 0.565, 0.647 0.365, 0.536
10 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.13 0.44 ± 0.14 0.45 ± 0.14 0.45 ± 0.14 0.45 ± 0.14 0.45 ± 0.14
0.745, 0.906 0.742, 0.889 0.737, 0.868 0.692, 0.834 0.666, 0.802 0.611, 0.766 0.593, 0.727 0.512, 0.661 0.381, 0.572
11 0.46 ± 0.15 0.46 ± 0.15 0.46 ± 0.15 0.47 ± 0.15 0.47 ± 0.15 0.47 ± 0.15 0.47 ± 0.15 0.47 ± 0.15 0.48 ± 0.16 0.49 ± 0.16
0.959, 0.985 0.95, 0.975 0.95, 0.971 0.928, 0.95 0.906, 0.933 0.871, 0.915 0.809, 0.876 0.746, 0.86 0.621, 0.792
12 0.44 ± 0.12 0.44 ± 0.12 0.44 ± 0.12 0.45 ± 0.12 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.46 ± 0.13 0.47 ± 0.13
0.924, 0.977 0.903, 0.961 0.891, 0.935 0.874, 0.916 0.856, 0.891 0.803, 0.863 0.749, 0.814 0.661, 0.751 0.493, 0.666
13 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.53 ± 0.15 0.54 ± 0.15 0.55 ±0.16
0.97, 0.978 0.96, 0.964 0.922, 0.943 0.926, 0.915 0.887, 0.882 0.84, 0.842 0.758, 0.809 0.645, 0.745 0.469, 0.642
14 0.44 ±0.12 0.47 ± 0.13 0.47 ± 0.13 0.47 ± 0.13 0.47 ± 0.13 0.47 ± 0.13 0.47 ± 0.13 0.48 ± 0.14 0.48 ± 0.14 0.48 ± 0.14
0.951, 0.983 0.945, 0.965 0.926, 0.945 0.91, 0.907 0.879, 0.887 0.826, 0.853 0.742, 0.789 0.65, 0.752 0.486, 0.653
Mean ± SD 26.1 ± 2.3 0.44 ± 0.12 0.44 ± 0.12 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.45 ± 0.13 0.46 ± 0.14