Assessment of axial spondyloarthritis activity using a magnetic resonance imaging-based multi-region-of-interest fusion model.

"Declarations Ethics approval and consent to participateThis study was approved by the Institutional Research Ethics Board and adheres to the tenets prescribed by the Declaration of Helsinki (institutional review board M2022399, National Clinical Trial number MR-11–22-009236). Due to the retrospective nature of the study, informed consent of the patients was not required. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This research was funded by the Beijing Municipal Natural Science Foundation (Z190020) and the National Natural Science Foundation of China (No. 81971578; 81901791). Funding sources were not involved in the study design; data collection, analysis, and interpretation; writing of the report; or decision to submit the article for publication."