The Localization and Characterization of Ischemic Scars in relation to the Infarct Related Coronary Artery Assessed by Cardiac Magnetic Resonance and a Novel Automatic Postprocessing Method

Figure 5

Distribution of LGE-CMR according to the AHA proposal and infarct related artery (IRA) by automatic and manual assessment. The automatic assessment is calculated from all transverse slices from the basal, mid-, and apical regions, whereas the manual assessment is calculated from one representative transverse slice from the basal, mid-, and apical cavities. For all scars, the endocardial extent of infarction () is assessed (0°–360°) and the total sum is calculated and allocated to each segment. The percent marking is the percentage of the total sum of for each of the 16 segments used in this study; that is, sum of all percentages for one segment is equal to 100%. The manual assessment of segment 17 is also included. The percentage demonstrates the agreement of the observed LGE within each IRA segment as proposed by AHA. The manual assessment of segment 17 is also included in the automatic assessment.