Radiologic Assessment in Complete Mesocolic Excision for Right Colon Cancer (RACOMERC)


Colorectal surgery has made progressive advances in recent years related on one hand to the implementation of diagnostic methods that allow an early diagnosis of tumors and on the other hand to the development of therapeutic options based on laparoscopic surgery. In particular, multicenter clinical trials have shown that the laparoscopic approach to colorectal cancer had a comparable or even better outcomes in terms of perioperative complications and functional recovery of patients than traditional surgery. Complete Mesocolic Excision (CME) in right colonic resections is a surgical approach, of greater technical complexity, that appears to improve the oncological outcomes of these patients at the cost of an increased rate of complications. The highest rate of complications reported in the literature in patients undergoing CME was related to intraoperative bleeding due to the central vascular dissection that is performed. CT technological advances have made possible to perform CT angiography with multiplanar and three-dimensional reconstructions with the possibility of obtaining a detailed preoperative map of the vascular anatomy of these patients. CT scan was acquired immediately before contrast material injection and during arterial and venous phase. Arterial phase was obtained using the bolus tracking technique with an automated scan-triggering software. Image analysis was performed using multiplanar reformations (MPR), maximum intensity projection (MIP) and 3D volume rendering (VR) technique. The purpose of the CT was to identify three different parameters necessary for proper performance of CME and CVL and to compare preoperative observations with intraoperative evidence. All surgeries were performed by teams experienced in laparoscopic colorectal surgery. The investigators evaluated:- Fascia of Fredet; vascular structures; lymph nodes.

Full Title of Study: “Complete Mesocolic Excision (CME) and Central Vascular Ligation (CVL) in Right-sided Colon Cancer: Surgical and Radiological Assessment. A Prospective Observational Study (RACOMERC)”

Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Prospective
  • Study Primary Completion Date: December 31, 2020

Detailed Description



  • Procedure: Laparoscopic right colonic resection with Complete Mesocolic Excision (CME)
  • Radiation: 3D CT angiography

Clinical Trial Outcome Measures

Primary Measures

  • Preoperative radiologic assessment of patients with diagnosis of right-sided colon cancer. The investigators evaluated: fascia of Fredet; vascular structures (ileocolic vessels; right colic artery, middle colic artery, trunk of Henle); lymph nodes.
    • Time Frame: Evaluation of preoperative CT scan features during enrollment of patients.
    • Evaluation of preoperative CT scan features during enrollment of patients.

Secondary Measures

  • Perioperative outcomes: intraoperative complications
    • Time Frame: intraoperative time
    • complication occurred during surgery
  • Perioperative outcomes: postoperative complications
    • Time Frame: up to 30 days postoperative
    • complication occurred in postoperative period
  • Perioperative outcomes: mean operative time
    • Time Frame: intraoperative time
    • operative time
  • perioperative outcomes: rate of conversion
    • Time Frame: intraoperative time
    • rate of conversion from laparoscopy to open surgery

Participating in This Clinical Trial

Inclusion Criteria

  • patients with diagnosis of right-sided colon cancer – patients underwent to CT angiography – laparoscopic right hemicolectomy with CME and CVL. Exclusion Criteria:

  • metastatic disease – palliative treatment – impossibility to perform CT angiography – patients underwent to a traditional colonic resection with D2 lymphadenectomy.

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 85 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • University of Palermo
  • Provider of Information About this Clinical Study
    • Principal Investigator: Prof. Antonino Agrusa, Associate professor – University of Palermo
  • Overall Official(s)
    • Antonino Agrusa, Professor, Principal Investigator, University of Palermo – Italy
  • Overall Contact(s)
    • Antonino Agrusa, Professor, +390916552612,


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Miyazawa M, Kawai M, Hirono S, Okada K, Shimizu A, Kitahata Y, Yamaue H. Preoperative evaluation of the confluent drainage veins to the gastrocolic trunk of Henle: understanding the surgical vascular anatomy during pancreaticoduodenectomy. J Hepatobiliary Pancreat Sci. 2015 May;22(5):386-91. doi: 10.1002/jhbp.205. Epub 2015 Jan 7.

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