Application efficacy of computed tomography angiography in preoperative evaluation for laparoscopic radical resection of colon cancer
- VernacularTitle:计算机体层摄影血管造影在腹腔镜结肠癌根治术前评估中的应用效果
- Author:
Guoqing WANG
1
;
Jianghui GAO
;
Yan ZHANG
;
Liulong ZHANG
Author Information
- Publication Type:Journal Article
- Keywords: laparoscopy; colon cancer; computed tomography angiography(CTA); preoperative evaluation; diagnostic value
- From: China Journal of Endoscopy 2025;31(6):24-31
- CountryChina
- Language:Chinese
- Abstract: Objective To analyze the clinical application of computed tomography angiography(CTA)in preoperative planning for laparoscopic radical resection of cancer procedures.Methods Clinical data of 120 patients who underwent laparoscopic radical resection of colon cancer from January 2021 to February 2024 were retrospectively analyzed.Among them,60 patients underwent routine abdominal CT and CTA,while the other 60 patients underwent magnetic resonance imaging(MRI).Pathological findings were used as the gold standard to determine the consistency of CTA in clinical T staging and actual results,as well as its accuracy in evaluating whether the tumor invaded the mesenteric blood vessels and surrounding tissues.Results Using pathological findings as the gold standard,preoperative CTA demonstrated 95.00%diagnostic accuracy(57/60)for T-staging,showing excellent agreement(Kappa=0.925,P<0.05).The preoperative MRI successfully diagnosed 98.33%(59/60)in determining the T staging of colon cancer.There was no significant difference in the number of cases detected by CTA and MRI(χ2=0.26,P>0.05).CTA predicted whether the tumor involved important blood vessels such as superior mesenteric artery,superior mesenteric vein,inferior mesenteric artery,inferior mesenteric vein,as well as surrounding tissues such as abdominal aorta,renal artery,renal vein and splenic artery,which was in good agreement with postoperative pathological results.Especially in predicting mesenteric vascular involvement,the sensitivity,specificity and accuracy of CTA were 94.44%,95.83%and 95.00%,respectively.Conclusion Preoperative CTA for patients undergoing laparoscopic radical resection of colon cancer not only provides clear visualization of T-staging,but also reveals mesenteric vascular anatomy/variants and defines tumor relationships with surrounding structures.This comprehensive assessment offers robust support for surgical planning,enhances laparoscopic procedure safety,and reduces avoidable operative risks.
