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. 2019 Mar 20;19:16. doi: 10.1186/s40644-019-0204-x

Fig. 1.

Fig. 1

a During the course of PLA under ultrasound guidance, the lesion was carbonized with the release of ablation energy, and a hyperechoic area could be observed. b CEUS was conducted are the completion of PLA, and a hypoechoic area representing complete ablation could be observed