Endoscopic ultrasonograpy for rectal cancer restaging after neoadjuvant therapy / 中华消化内镜杂志

ABSTRACT

Objective The aim of this study is to evaluate the accuracy of EUS in rectal cancer restaging after neoadjuvant therapy. Methods EUS staging was performed after neoadjuvant therapy in 61 patients who were diagnosed as having local advanced rectal cancer. All patients underwent subsequent surgi-cal resection and complete pathologic staging. Results Compared with pathological staging, the total accura-cy of post-therapy EUS T-staging was 59.0% (36/61). The T-overstaging rate was 36.1% (22/61) and un-derstaging rate was 4.9% (3/61). Accuracy of EUS N-staging was 68.9% (42/61), N-overstaging and un-derstaging rates were 14.7% (9/61) and 16.4% (10/61), respectively. Conclusion The accuracy of EUS restaging for rectal cancer after neoadjuvant therapy is relatively low.