Fig. 2From: Computed tomography-based thermography (CTT) in microwave ablation: prediction of the heat ablation zone in the porcine liverSimple linear regression between temperature and average attenuation in the ablation zone. There is significant correlation between HU and temperature with r = − 0.77 (95% CI, − 0.89 to − 0.57) at p < 0.001. Linear regression yields a slope of − 1.96 HU/°C (95% CI, − 2.66 to − 1.26)Back to article page