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Table 3 Comparison of in vivo vessel compartment-average T1 (ms), T2 (ms), and PD (relative to water) measured using SLAM with acceleration factors of R = 1-18, and those measured using the full k-space reconstruction

From: High-resolution and accelerated multi-parametric mapping with automated characterization of vessel disease using intravascular MRI

  Comp.a R = 1 R = 3 R = 6 R = 10 R = 18 full k-spaceb
T1 1 2916 2905 2900 2946 2826 2802 ± 721
2 787 787 788 786 780 812 ± 124
3 848 865 993 1094 1041 929 ± 388
4 236 237 243 288 365 253 ± 122
5 731 728 740 804 879 776 ± 123
6 705 705 704 705 704 964 ± 704
T2 1 1173 1154 1131 1040 825 1050 ± 1253
2 47 47 47 47 47 51 ± 15
3 75 81 106 123 135 128 ± 247
4 99 99 98 93 86 98 ± 21.5
5 42 42 42 43 47 46 ± 10
6 64 64 64 63 64 101 ± 176
PD 1 1.01 1.01 1.00 1.00 0.95 1.00 ± 0.24
2 0.77 0.77 0.78 0.78 0.77 0.74 ± 0.13
3 0.45 0.44 0.45 0.50 0.52 0.46 ± 0.18
4 0.41 0.40 0.40 0.39 0.38 0.45 ± 0.10
5 0.81 0.81 0.82 0.84 0.83 0.84 ± 0.18
6 0.40 0.40 0.40 0.40 0.40 0.65 ± 0.54
  1. aCompartments as defined in Fig. 6(b)
  2. b Mean ± SD of compartment