Chest Wall Tumor Clinical Trial
Official title:
Safety and Efficacy of Three-dimensional Printing Template-assisted CT-guided Radioactive Iodine-125 Seeds Implantation in the Treatment of Recurrent Chest Wall Malignancies After External Beam Radiotherapy
This study will observe the efficacy and toxicities of 3-dimensional printing noncoplanar template assisted CT guided radioactive iodine-125 seeds implantation in the treatment of patients with recurrent chest wall malignancies after external beam radiotherapy prospectively, and analyzes the influence of clinical and dosimetric factors on the outcomes.
Radioactive Iodine-125 seed brachytherapy is a conventional treatment in Peking University Third Hospital. Radioactive Iodine-125 seed brachytherapy is the implantation of Iodine-125 seed into tumors.The radioactive Iodine-125 seed can release low dose of irradiation persistently which kills tumors cell and causes less damage to normal tissue at the same time. This study will enroll the patients with recurrent chest wall malignancies after external beam radiotherapy (primary or metastasis) who underwent CT-guided radioactive iodine-125 seed implantation assisted by 3D-printing template from 2019 to 2021. The investigators evaluate the dose that covers 90% target volume(D90) and other parameters after the implantation. The efficacy and adverse events will be observed. Local control(LC) time and overall survival(OS) time are evaluated. ;
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