Figure 2
From: Chronic non-transmural infarction has a delayed recovery of function following revascularization
Methods for quantitative assessment of function, infarction and perfusion. (A) A long axis magnetic resonance image (MRI) was used to plan short axis images of the left ventricle (LV) (parallel white lines). Slices 3-6 were used for analysis. Endocardial and epicardial borders of the LV were manually delineated on short axis cine MR images in end diastole (ED) and end systole (ES). Wall thickness was quantified in a 12-segment model. Delayed enhancement images (Contrast) were obtained at the same slice positions. Transmurality of infarction was quantified using manual delineation of the borders of the LV endocardium, epicardium and infarction, employing the same 12-segment model. (B) Single photon emission computed tomography (SPECT) images were reconstructed in the same fashion as for MRI. Regional perfusion at rest and stress were assessed quantitatively using the same 12-segment model. See text for details.