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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 ofx̅CoV ofT1(%) across 4 tubes

Order of tube IDs follows their orientation in the scanned bottle

Philips

MOLLI 3b(3s)5b

0.33

Siemens

ShMOLLI 5b(1b)1b(1b)1b [780C]

0.69

Siemens

MOLLI 5b(3s)3b [448B]

0.95

Siemens

SASHA

1.29

Philips

SASHA

3.76

GE

SMART

3.76 sic.

Platform

Sequence [prototype, #]

x̅’ CoV ofT1(%), globalx̅± SD ofT1according to native tube ID [tube rT1 by slow IR]

M [1260 ms]

L [1499 ms]

K [1010 ms]

J [1872 ms]

Siemens

MOLLI MyoMaps product 5s(3s)3s [4]

1.28, 1182 ± 20

1.61, 1367 ± 29

1.02, 955 ± 13

2.42, 1831 ± 62

MOLLI 3b(3s)3b(3s)5b [448, 1]

1.16, 1092 ± 13

1.92, 1252 ± 24

0.56, 889 ± 5

1.58, 1724 ± 27

MOLLI 5b(3s)3b [448B, 1]a

0.36, 1233 ± 4

0.78, 1449 ± 11

0.76, 986 ± 7

0.86, 2012 ± 17

MOLLI 5b(3s)3b [780B, 2]

0.99, 1204 ± 14

1.13, 1410 ± 18

0.74, 970 ± 9

1.50, 1912 ± 28

MOLLI 5s(3s)3s [780B, 1]

1.46, 1222 ± 18

2.36, 1435 ± 34

1.76, 980 ± 17

3.04, 1916 ± 58

ShMOLLI 5b(1b)1b(1b)1b [780B, 2]

1.17, 1155 ± 27

1.62, 1361 ± 35

0.80, 922 ± 17

2.45, 1882 ± 41

ShMOLLI 5b(1b)1b(1b)1b [780C, 1]a

0.78, 1109 ± 9

0.89, 1322 ± 12

0.64, 888 ± 6

1.51, 1892 ± 29

SASHA [2]

2.04, 1284 ± 30

1.15, 1534 ± 27

0.70, 1025 ± 13

1.27, 1949 ± 35

Philips

MOLLI 3b(3s)3b(3s)5b [4]

1.64, 1147 ± 52

2.42, 1343 ± 80

1.05, 923 ± 29

3.90, 1785 ± 115

MOLLI 3b(3s)5b [1]a

0.01, 1055 ± 1

0.49, 1217 ± 6

0.05, 862 ± 1

0.78, 1710 ± 13

MOLLI 3s(3s)5s [1]

5.41, 1175 ± 64

3.72, 1392 ± 52

7.13, 937 ± 67

3.56, 1833 ± 65

MOLLI 5b(3s)3b [3]

4.18, 1098 ± 48

5.44, 1286 ± 73

4.37, 868 ± 42

6.33, 1784 ± 106

MOLLI 5s(3s)3s [6]

2.40, 1131 ± 70

2.41, 1320 ± 108

2.60, 906 ± 34

2.71, 1727 ± 131

MOLLI 5b(1b)1b(1b)1bc [2]

2.98, 948 ± 97

4.53, 1082 ± 137

0.96, 794 ± 60

6.29, 1286 ± 282

SASHA [2]

3.11, 1290 ± 46

3.40, 1826 ± 171

2.11, 1054 ± 38

6.41, 2157 ± 267

General Electric

SMART [1]

2.85, 1150 ± 33

4.13, 1227 ± 51

2.04, 973 ± 20

6.03, 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. x̅ = average CoV across the 4 native tubes for a given sequence
  7. x̅’ = 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
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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