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Table 3 CMR characteristics at 6 months stratified by average T1 values within the AAR at 3 h after PPCI

From: Hyper-acute cardiovascular magnetic resonance T1 mapping predicts infarct characteristics in patients with ST elevation myocardial infarction

FU CMR characteristics

Whole cohort

AAR with average T1 value (<  1400 ms) (n = 16)

AAR with average T1 value (≥ 1400 ms) (n = 13)

P value

LV end diastolic volume (ml)a

175 ± 42

159 ± 26

197 ± 49

0.020

LV end systolic volume (ml)a

86 ± 32

74 ± 19

99 ± 40

0.050

LV ejection fraction (%)a

52 ± 8

53 ± 9

51 ± 8

0.494

MSI (%)b

50 (39–71)

71 (47–90)

45 (37–54)

0.021

Final infarct size (%)a

19 ± 11

12 ± 9

27 ± 9

< 0.001

Large infarctc

20 (69%)

7 (44%)

13 (100%)

0.001

  1. a(mean ± SD), b (median, IQR), c(n, %)