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Objective To evaluate the response rate,local control,overall survival,pain control rate,treatmentrelated toxicity and prognostic factors of CTguided radioactive seeds implantation for locally recurrent rectal cancer (LRRC).Methods From September 2003 to October 2011,thirty one patients with locally recurrent rectal cancer received 1251 0r 103Pd seeds implantation under CT guidance.Each patient underwent three-dimentional treatment planning preimplantation and dosimetric verification post-implantation.