A Multi-mode Thermophysical Immunotherapy Study for Breast Cancer Liver Metastases

All subjects are treated using the multi-mode tumor treatment system (Shanghai MAaGI Medical Technology Co., Ltd), with the treatment procedure conducted according to the temperature control mode for tumor ablation. The treatment procedure includes: rapid freezing of the tumor tissue to form an ice ball extending 5mm beyond the lesion, maintaining this state for 5 minutes, followed by thawing and rewarming; subsequently, RFA is performed to ensure complete ablation, with the ablation zone including a safety margin of 5-10mm around the tumor.

All subjects are treated using the radiofrequency ablation therapeutic apparatus (MedSphere International (Shanghai) Co., Ltd.), with the treatment procedure conducted according to the preset power and time parameters to ensure a safety margin of 5-10mm.