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Table 2 Temperature-adjusted (normalized to 21 °C) native T1 and CoV (%) at 3 T summarized by vendor and sequence

From: T1 mapping performance and measurement repeatability: results from the multi-national T1 mapping standardization phantom program (T1MES)

Summary table ofCoV ofT1(%) across 4 tubesOrder of tube IDs follows their orientation in the scanned bottle
PhilipsMOLLI 3b(3s)5b0.33
SiemensShMOLLI 5b(1b)1b(1b)1b [780C]0.69
SiemensMOLLI 5b(3s)3b [448B]0.95
SiemensSASHA1.29
PhilipsSASHA3.76
GESMART3.76 sic.
PlatformSequence [prototype, #]’ CoV ofT1(%), global± SD ofT1according to native tube ID [tube rT1 by slow IR]
M [1260 ms]L [1499 ms]K [1010 ms]J [1872 ms]
SiemensMOLLI MyoMaps product 5s(3s)3s [4]1.28, 1182 ± 201.61, 1367 ± 291.02, 955 ± 132.42, 1831 ± 62
MOLLI 3b(3s)3b(3s)5b [448, 1]1.16, 1092 ± 131.92, 1252 ± 240.56, 889 ± 51.58, 1724 ± 27
MOLLI 5b(3s)3b [448B, 1]a0.36, 1233 ± 40.78, 1449 ± 110.76, 986 ± 70.86, 2012 ± 17
MOLLI 5b(3s)3b [780B, 2]0.99, 1204 ± 141.13, 1410 ± 180.74, 970 ± 91.50, 1912 ± 28
MOLLI 5s(3s)3s [780B, 1]1.46, 1222 ± 182.36, 1435 ± 341.76, 980 ± 173.04, 1916 ± 58
ShMOLLI 5b(1b)1b(1b)1b [780B, 2]1.17, 1155 ± 271.62, 1361 ± 350.80, 922 ± 172.45, 1882 ± 41
ShMOLLI 5b(1b)1b(1b)1b [780C, 1]a0.78, 1109 ± 90.89, 1322 ± 120.64, 888 ± 61.51, 1892 ± 29
SASHA [2]2.04, 1284 ± 301.15, 1534 ± 270.70, 1025 ± 131.27, 1949 ± 35
PhilipsMOLLI 3b(3s)3b(3s)5b [4]1.64, 1147 ± 522.42, 1343 ± 801.05, 923 ± 293.90, 1785 ± 115
MOLLI 3b(3s)5b [1]a0.01, 1055 ± 10.49, 1217 ± 60.05, 862 ± 10.78, 1710 ± 13
MOLLI 3s(3s)5s [1]5.41, 1175 ± 643.72, 1392 ± 527.13, 937 ± 673.56, 1833 ± 65
MOLLI 5b(3s)3b [3]4.18, 1098 ± 485.44, 1286 ± 734.37, 868 ± 426.33, 1784 ± 106
MOLLI 5s(3s)3s [6]2.40, 1131 ± 702.41, 1320 ± 1082.60, 906 ± 342.71, 1727 ± 131
MOLLI 5b(1b)1b(1b)1bc [2]2.98, 948 ± 974.53, 1082 ± 1370.96, 794 ± 606.29, 1286 ± 282
SASHA [2]3.11, 1290 ± 463.40, 1826 ± 1712.11, 1054 ± 386.41, 2157 ± 267
General ElectricSMART [1]2.85, 1150 ± 334.13, 1227 ± 512.04, 973 ± 206.03, 1419 ± 86
  1. Less favorable CoVs (> 2%, see the “T1 repeatability” section) are in italics. Post-GBCA tubes are not shown here as their data are reported separately in relation to post-GBCA sequences in Supplementary Table 6
  2. sic = text is quoted exactly as it stands in the original, i.e., this is not a typo. Abbreviations as in Table 1
  3. aDenotes the T1 mapping sequence|software combination with lowest overall CoV% for a given vendor where multiples exist
  4. bDenotes the number of different magnets submitting that particular sequence from which the average CoVs were derived
  5. cIn the absence of iterative/data dropping steps in map creation as per ShMOLLI
  6.  = average CoV across the 4 native tubes for a given sequence
  7. ’ = where more than one sequence type was submitted, individual CoVs were then averaged to derive x̅’ CoV; while for single sequence submissions x̅’ CoV is from the global mean T1 ± SD for that one sequence