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Randomized Controlled Trial
. 2020 Dec;24(12):2822-2828.
doi: 10.1007/s11605-019-04460-1. Epub 2019 Dec 16.

Clinical Value of Multi-Slice Spiral CT Angiography, Colon Imaging, and Image Fusion in the Preoperative Evaluation of Laparoscopic Complete Mesocolic Excision for Right Colon Cancer: a Prospective Randomized Trial

Linjie Bian  1 , Danping Wu  1 , Yigang Chen  2 , Zhuiyang Zhang  1 , Jianming Ni  1 , Lei Zhang  1 , Jiazen Xia  3
Affiliations
Randomized Controlled Trial

Clinical Value of Multi-Slice Spiral CT Angiography, Colon Imaging, and Image Fusion in the Preoperative Evaluation of Laparoscopic Complete Mesocolic Excision for Right Colon Cancer: a Prospective Randomized Trial

Linjie Bian et al. J Gastrointest Surg. 2020 Dec.

Abstract

Purpose: To evaluate the clinical value of CT angiography (CTA), CT colonography (CTC), and image fusion in the preoperative evaluation of laparoscopic complete mesocolic excision (CME) for right colon cancer.

Methods: In this randomized prospective study, 80 patients undergoing laparoscopic CME for right colon cancer were randomly divided into two groups: image fusion [the original images were reconstructed using CTA and CTC, then fused into three-dimensional images of the blood vessels and intestines (n = 40)] and control (without CTA and CTC reconstruction before surgery). All patients underwent plain and enhanced abdominal CT before surgery.

Results: In the image fusion group, the gastrocolic trunk of Henle was present in 33 cases, and its branches originated from the colon vein, right gastroepiploic vein, and superior anterior pancreaticoduodenal vein. Among these patients, 5 exhibited the right gastroepiploic vein and superior anterior pancreaticoduodenal vein; 21 exhibited a gastrointestinal trunk consisting of 2 or 3 branches of the right gastroepiploic vein, right colon vein, and middle colon vein; and 7 exhibited 3 or 4 gastro-pancreatic and colon trunks consisting of the right colon vein, middle colon vein, right gastroepiploic vein, and superior anterior pancreaticoduodenal vein. The correspondence with the anatomy actually observed during surgery was 100%. Compared with the conventional CT group, the duration of the operation in the image fusion group was shorter, with reduced intraoperative bleeding, and more lymph node dissection. There were no significant differences in the incidence of complications and length of hospital stay between the two groups (p > 0.05).

Conclusions: For laparoscopic CME for right colon cancer, CTA, CTC, and image fusion were effective preoperative evaluation methods, which avoided some unseen dangers in the operation process and led to better therapeutic outcomes.

Keywords: Angiography; Complete mesocolic excision; Gastrocolic trunk of Henle; Preoperative evaluation.

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