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Table 2 CMR findings

From: Cardiovascular magnetic resonance by non contrast T1-mapping allows assessment of severity of injury in acute myocardial infarction

Variable

ALL

(N = 41)

STEMI

(N = 32)

NSTEMI

(N = 9)

P-value

(NSTEMI vs STEMI)

EF

48 ± 9

46 ± 8

58 ± 10

< 0.001

EDV

153 ± 36

157 ± 36

142 ± 39

0.2

ESV

81 ± 30

86 ± 30

65 ± 29

< 0.01

SV

73 ± 15

72 ± 15

79 ± 17

< 0.05

WMSI

1.6 ± 0.3

1.6 ± 0.3

1.4 ± 0.2

0.02

Oedema (T2W), LV% (Acute)

47 ± 14%

51 ± 12%

34 ± 10%

0.00015

LGE, LV % (acute)

38 ± 16%

41 ± 14%

25 ± 12%

0.0006

MO positive

7 (17%)

6 (18%)

1 (11%)

1

 

N = 34

N = 28

N = 6

 

EF (6M)

58 ± 11

56 ± 11

66 ± 3

0.1

WMSI (6M)

1.3 ± 0.2

1.3 ± 0.35

1.2 ± 0.2

0.2

LGE, LV% (6M)

28 ± 14%

30 ± 14%

21 ± 14%

0.1

Myocardial salvaged index (T2W)*

37 ± 27%

41 ± 23%

17 ± 37%

0.3

  1. Abbreviations: EDV, end-diastolic volume; EF, Ejection fraction; ESV, end-systolic volume; LGE, late gadolinium enhancement; LV, left ventricle;MO, microvascular obstruction; SV, stroke volume; T2W, T2 weighted; WMSI, wall motion score index.* myocardial salvage index was calculated using the final infarct size at 6 months (6M)