Ultrasound-guided percutaneous laser ablation for papillary thyroid microcarcinoma: a retrospective analysis of 37 patients

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 observe