Anatomy-guided computational framework for classifying vascular ligation and lymphadenectomy in oncologic sigmoidectomy: toward AI-supported surgical auditing

This standardized anatomical-radiological workflow, integrating cadaveric dissection, CT-based vascular analysis, and AI-assisted 3D reconstruction, provides an objective tool to classify the level of vascular ligation performed in oncological sigmoidectomy and to anatomically categorize locoregional recurrence, establishing a foundation for future surgical audit and outcome studies, and representing a step toward AI-supported surgical audit systems capable of standardizing vascular ligation classification and recurrence mapping.