CT-guided radioactive ¹²⁵I seeds brachytherapy for lung oligometastases from colorectal cancer: initial results.

"Declarations Ethics approval and consent to participateThis retrospective study was performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committees of the First Affiliated Hospital of Zhengzhou University (Ethical Review Number: 2021-KY-400). The requirement for informed consent was waived by the Ethics Committee of The First Affiliated Hospital of Zhengzhou University because of the retrospective nature of the study. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study has received fundings by Major Science and Technology Projects of Henan Province in 2022 (fund No:221100310100) and Henan Province Science and Technology Research Project in 2023 (fund No:232102311132)."