1. Steven E. Williams et al. JACEP 2015;1:421-431
Macroscopic and Microscopic Appearances of the Ablation Line (A) Epicardial (top) and endocardial (bottom) views. The ablation line gap can be seen just before ablation continues into the inferior vena cava (IVC). (B) Endocardial view showing cranial, mid-, and caudal ends of the ablation line. Dotted lines indicate primary cuts to prepare specimens for sectioning. (C) Masson's trichrome stain of cranial, gap, and caudal sections of the ablation line. The top and bottom panels are sectioned transverse to the line, with the middle panel sectioned longitudinal to the line through the ablation gap. Catheter direction during ablation is shown schematically. LA = left atrial; SVC = superior vena cava; other abbreviations as in Figure 2.
Steven E. Williams et al. JACEP 2015;1:
American College of Cardiology Foundation