Irrigated Tip Catheters for Radiofrequency Ablation in Ventricular Tachycardia

Figure 1

Phase sensitive inversion recovery (PSIR) late Gadolinium enhancement (LGE) images in short axis (a; c) and 4-chamber view orientation (b; d). The first row (a; b) shows the images before ablation of ventricular tachycardia and premature ventricular contractions at the midventricular lateral wall. There is a large area of fibrosis at the inferior and inferolateral wall (arrows) from previous ablation. Images 1 day after ablation (c; d) show small linear transmural LGE (arrowheads) which is interpreted as postablational necrosis.

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