Figure 5:
(A) Violin plots (with a point marking the median value) of T2-w and DW z-scores binned in 5-minute increments after ablation for all lesion ROI’s. A z-score of zero indicates no change T2-w or DW image magnitude between baseline and treatment monitoring sessions. The majority of DW z-scores show more pronounced contrast after ablation. (B) Violin plots (with a point marking the median value) of ADC z-scores binned in 5-minute increments for both lesion and control ROI’s. Medians marked by an asterisk represent statistically significant z-scores at the 0.0083 level. The majority of lesions display a large and sustained decrease in ADC values after ablation relative to the estimated standard deviation of the measurement. The control ROI’s display a slight increase in ADC between the baseline and treatment monitoring sessions, which may be either physiologic or a result of residual scanner drift.