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 2

Diagrammatic drawing of scar measurements. Most patients have 6–9 slices, and the drawing is a transversal cut of right and left ventricle of one slice. The phase of any pixel is defined as the angle (ranging from 0 to 360°) between the line joining the pixel and the heart center and the heart axis. The endocardial extent of infarction of a scar is drawn through the part of the scar with the shortest and longest phase as shown in the scar of the drawing. The radial position, , of any pixel within the myocardium is a number between 0 and 1 representing the relative distance within the myocardial borders. 0 represents endocardium and 1 epicardium. is defined as the distance between and maximum . Only scars adherent to endocardium with are used in the current study.