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

Table 4 AAR (%LV) as a predictor of acute and follow-up CMR outcomes

Extent of injury		Univariate regression analysis			Multivariate regression analysis^b
Extent of injury		β Coefficient	95% CI	P value	β Coefficient	95% CI	P value
Acute CMR (24 h)	EDV	1.21	0.15,2.28	0.027	1.21^a	0.15,2.28	0.027
	ESV	1.53	0.72,2.34	0.001	0.94	0.02,1.86	0.046
	EF	−0.57	−0.81,-0.32	< 0.001	− 0.31	− 0.56,− 0.07	0.015
	LGE%	0.76	0.39,1.12	< 0.001	0.39	0.04,0.74	0.029
	MVO extent	0.23	0.07,0.38	0.006	0.07	-0.07,0.20	0.336
	IMH extent	0.07	0,0.15	0.039	0.03	−0.04,0.11	0.362
Follow-up CMR (6 months)	EDV	1.23	0.04,2.42	0.043	0.54	−0.66,1.74	0.361
	ESV	1.24	0.39,2.08	0.006	0.86	0.04,1.67	0.041
	EF	−0.32	−0.53,-0.1	0.006	−0.27	−0.51,-0.04	0.023
	MSI	−0.88	−1.52,-0.23	0.010	−0.43	−1.15,0.30	0.235
	Final infarct size	0.57	0.32,0.83	< 0.001	0.47	0.22,0.72	0.001

^aNone of the variables in the model was a predictor of EDV (average T1 value of AAR was not included), ^bFor 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

ISSN: 1532-429X