Diagnostic Value of Endoscopic Ultrasound in Staging Rectal Cancer

Objective: To explore the diagnostic value of endoscopic ultrasound (EUS) in the staging of rectal cancer. Methods: Fifty patients with rectal cancer, treated at the Department of Endoscopy, Cancer Hospital Affiliated to Fudan University, from March 2023 to June 2024, were selected. All patients underwent EUS and computed tomography (CT) examination within two weeks before surgery. The postoperative pathological staging was used as the standard to compare the accuracy of tumor TN staging using EUS and/or CT. Results: The accuracy rates of T and N staging by abdominal spiral CT were 72.00% and 76.00%, respectively, while those by EUS were 88.00% and 74%, respectively. There was a significant difference in the accuracy of T staging between the two methods (both P < 0.05). Conclusion: EUS has high diagnostic value in the staging of rectal cancer, providing important reference information for clinicians, aiding in the development of personalized treatment plans, and assessing patient prognosis.