Figure 1

(a) T ₂ maps depicting an RF lesion at 4 time points after ablation. Images were acquired using a 4-channel cardiac anterior array at 4 echo times: TE=3, 24, 88, & 184 ms and fitted using a 3-parameter model (resolution = 0.9 × 0.9 × 6 mm). (b) Area of edema with time after ablation for the same lesion. The edematous region grew in size by 110%, and this positive trend was significant with p < 0.05 for the fitted line.