Role of CT Angiography With Three-dimensional Reconstruction of Mesenteric Vessels in Planning and Performing of Laparoscopic Colorectal Resections

The aim of this study is to evaluate if the prior knowledge of the individual mesenteric vascular anatomy of patients represents an advantage in performing laparoscopic colorectal resections. The investigators want demonstrate that the three-dimensional reconstruction of colonic vascular anatomy, acquired with a CT angiography, may lead to a more effective and less extensive dissection and to a fewer intraoperative and postoperative complications.

Inclusion Criteria:

• need of colorectal resection
• absence of preoperative CT scan

Exclusion Criteria:

• contraindications to laparoscopy
• ASA IV
• BMI > 40 Kg/m2
• need of non standard colonic resection