1.To demonstrate the clinical applicability of 3-dimensional CT angiography (3D-CTA) in evaluating the anatomic variations of inferior mesenteric artery (IMA) and left colic artery (LCA), to help make pre-operative strategies of rectal cancer surgery.
目的探讨三维CT血管成像(3D-CTA)在评价肠系膜下动脉(IMA)和左结肠动脉(LCA)解剖变异中的临床应用价值，为制定直肠癌手术的术前策略提供依据。