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Table 5 Hyper-acute average T1 value of injured myocardium as a predictor of acute and follow-up CMR outcomes

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

Severity of injury

Univariate regression analysis

Multivariate regression analysisa

Β Coefficient

95% CI

P value

β Coefficient

95% CI

P value

Acute CMR (24 h)

EDV

1.70

0.18,3.22

0.030

1.05

−0.82,2.91

0.260

ESV

1.34

−0.01,2.68

0.052

EF

−0.34

−0.80,0.12

0.141

LGE%

1.06

0.54,1.59

< 0.001

0.61

0.13,1.09

0.015

MVO extent

0.35

0.14,0.57

0.002

0.22

0.03,0.41

0.028

IMH extent

0.11

0.01,0.21

0.031

0.08

−0.04,0.19

0.185

Follow-up CMR (6 months)

EDV

3.00

1.32,4.47

0.001

3.00

0.60,5.37

0.017

ESV

2.32

1.15,3.51

< 0.001

1.76

0.35,3.17

0.016

EF

−0.41

−0.78,-0.03

0.035

−0.09

−0.55,0.36

0.681

MSI

−1.5

−2.41,-0.60

0.002

−1.13

−2.06,-0.19

0.021

Final infarct size

0.99

0.62,1.36

< 0.001

0.65

0.25,1.05

0.003

  1. aFor all CMR outcomes, adjustment was made for the following variables: age, gender, diabetes and hypertension status, mean blood pressure at presentation, location of infarct (anterior versus non-anterior) stent length and diameter, use of glycoprotein IIb/IIIa inhibitors, TIMI and myocardial blush grade at the end of procedure, thrombus score, ST segment resolution, ischaemia time, door-to-balloon time, troponin value, in addition to the extent of injury as LV% (AAR)