Figure 1.
A case of lateral infarction related to the occlusion of the proximal circumflex coronary artery.
A, CMR late gadolinium hyperenhancement slices of left ventricular short axis showing non transmural extension of myocardial infarct in the lateral zone; B, longitudinal global strain reprensented on bull’s eye view; it illustrates the correspondance between the late gadolimium enhancement (A) and the blunted longitudinal strain of the basal segments of the antero-lateral and infero-lateral left ventricular walls; C, the same blunted strain of the basal antero-lateral and infero-lateral left ventricular walls is observed in parasternal view when considering the circumferential function.
Figure 2.
A case of anterior infarction related to the occlusion of the proximal left anterior descending coronary artery.
A, CMR late gadolinium hyperenhancement slices of left ventricular short axis showing transmural extension of myocardial infarct in anterior and antero-septal zones and central hypoenhancement defining microvascular obstruction; B, longitudinal global strain represented on bull’s eye view; there is a severe dyskinesia (blue color) of the anterior wall; C, dyskinesia is also observed in parasternal view when considering the circumferential deformation of this severe transmural infarction.
Table 1.
Characteristics of the patient population (n = 41).
Table 2.
Echocardiography and CMR data.
Figure 3.
Interobserver Bland and Altman plots.
Echo: echocardiography; LVEF: left ventricular ejection fraction; GLS: global longitudinal strain; RGS: radial global strain; CGS: circumferential global strain; #1 for observer 1 and #2 for observer 2; SD: standard deviation.
Figure 4.
Intra-observer Bland and Altman plots.
GLS: global longitudinal strain; RGS: radial global strain; CGS: circumferential global strain; #2A for first measurement and #2B for second measurement; SD: standard deviation.
Table 3.
Multivariate analysis of echographic data for predicting CMR-derived infarct size (n = 35).
Table 4.
Multivariate analysis for predicting MVO mass (n = 35).
Figure 5.
Nonparametric ROC plots of several imaging baseline parameters to the presence of a 3 segment akinesia at follow-up.
Table 5.
Imaging parameters for the prediction of an akinesia affecting at least 3 segments at follow-up.