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Chinese Archives of General Surgery(Electronic Edition) ›› 2025, Vol. 19 ›› Issue (03): 209-216. doi: 10.3877/cma.j.issn.1674-0793.2025.03.012

• Meta Analysis • Previous Articles     Next Articles

Preoperative CT angiography combined with three-dimensional reconstruction in colorectal cancer surgery: A Meta-analysis

Binyan Liu1, Yubing Zhu1, Huimin Li1, Mengdi Hao1, Xiaoli Liu1, Dajin Yuan1, Wenbin Huang1, Wenjie Li1, Jia Zeng1, Lei Ding1,()   

  1. 1. Department of Gastrointestinal Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
  • Received:2024-12-20 Online:2025-06-01 Published:2025-06-20
  • Contact: Lei Ding

Abstract:

Objective

To explore the clinical guidance value of preoperative CT angiography (CTA)combined with three-dimensional reconstruction for colorectal cancer patients.

Methods

A comprehensive search of the literature in PubMed, Embase, Wanfang Database, and China National Knowledge Infrastructure (CNKI) databases up to December 1, 2024 was conducted to identify studies on whether preoperative CTA and three-dimensional vascular reconstruction improving the safety of abdominal surgery in colorectal cancer patients and its clinical application values.Two reviewers independently extracted outcome indicators such as intraoperative blood loss, the number of lymph nodes removed, abdominal drainage volume, time to first flatus, operation time, hospital stay, postoperative intestinal obstruction,anastomotic infection, and anastomotic leakage.Depending on the heterogeneity, a random-effects model or a fixed-effects model was used for analysis.Standardized mean difference (SMD), odds ratio (OR), and their 95% confidence interval (CI) were used as summary statistics for Meta-analysis.Subsequently, bias analysis and sensitivity analysis were performed.

Results

A total of 1 845 patients in 22 articles were included in this study.The Meta-analysis results showed that the operation time, hospital stay, intraoperative blood loss,time to first flatus, and postoperative abdominal drainage volume in the observation group were less than those in the control group, with statistically significant differences (P<0.01).The number of lymph nodes removed during surgery in the observation group was significantly more than that in the control group, and the incidence of postoperative intestinal obstruction, anastomotic infection, and anastomotic fistula were also significantly lower in the observation group (P<0.05).

Conclusion

Preoperative CTA combined with threedimensional reconstruction can clearly delineate the anatomy of the mesenteric vessels and the location of the tumor, which helps in formulating the surgical plan for colorectal cancer and improves the safety of the surgery, thus having clinical guidance value for the conduct of the operation.

Key words: Colorectal neoplasms, Computed tomography angiography, Three-dimensional reconstruction, Surgical safety, Value of application

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