Related Experiment Video
Updated: Jul 19, 2026
Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Accuracy of MDCT in predicting site of gastrointestinal tract perforation
Bernard Hainaux1, Emmanuel Agneessens, Raphael Bertinotti
1Department of Radiology, Centre Hospitalier Universitaire St.-Pierre, Université Libre de Bruxelles, 322 Rue Haute, Brussels 1000, Belgium. hainauxb@yahoo.fr
Objective:
The purpose of this study was to prospectively evaluate the accuracy of MDCT for preoperative determination of the site of surgically proven gastrointestinal tract perforations and to determine the most predictive findings in this diagnosis.
Subjects And Methods:
We prospectively studied 85 consecutive patients with extraluminal air on MDCT who had surgically proven gastrointestinal tract perforations. All patients underwent surgery within 12 hours after MDCT was performed. Two experienced radiologists, blinded to the surgical diagnosis, reached a consensus prediction of the site of the perforation using the following eight MDCT findings: concentration of extraluminal air bubbles adjacent to the bowel wall, free air in supramesocolic or inframesocolic compartments, extraluminal air in both abdomen and pelvis, focal defect in the bowel wall, segmental bowel-wall thickening, perivisceral fat stranding, abscess, and extraluminal fluid. MDCT imaging results were compared with surgical and pathologic findings. Logistic regression analyses were performed to assess the significance of the different radiologic criteria.
Results:
Analysis of MDCT images was predictive of the site of gastrointestinal tract perforation in 73 (86%) of 85 patients. Logistic regression showed that concentration of extraluminal air bubbles (p < 0.001), segmental bowel wall thickening (p < 0.001), and focal defect of the bowel wall (p = 0.007) were strong predictors of the site of bowel perforation.
Conclusion:
MDCT is highly accurate for predicting the site of gastrointestinal tract perforations. Three of eight CT findings significantly correlate with surgical diagnosis.
Insights
MDCT accurately identifies gastrointestinal perforations. Key findings like air bubbles and bowel wall defects predict the perforation site, aiding surgical planning.
Area of Science:
- Radiology
- Gastroenterology
- Surgical Diagnosis
Background:
- Gastrointestinal tract perforations require prompt diagnosis and surgical intervention.
- Accurate preoperative localization of the perforation site is crucial for successful surgical outcomes.
Purpose of the Study:
- To prospectively assess the accuracy of multidetector-row computed tomography (MDCT) in determining the site of gastrointestinal tract perforations.
- To identify the most predictive MDCT findings for gastrointestinal perforation.
Main Methods:
- 85 patients with surgically confirmed gastrointestinal perforations and extraluminal air on MDCT were prospectively studied.
- Two radiologists evaluated MDCT findings, including extraluminal air patterns, bowel wall changes, and associated signs.
- MDCT results were compared with surgical and pathological findings; logistic regression analyzed predictor significance.
Main Results:
- MDCT correctly predicted the perforation site in 86% of patients.
- Concentration of extraluminal air bubbles, segmental bowel wall thickening, and focal bowel wall defects were significant predictors (p < 0.001).
Conclusions:
- MDCT is a highly accurate imaging modality for preoperative localization of gastrointestinal perforations.
- Specific MDCT findings, particularly extraluminal air concentration and bowel wall abnormalities, strongly correlate with the perforation site.
Related Concept Videos
01:22Esophageal Perforation-I: Introduction
The location of esophageal perforation can vary, occurring anywhere along the esophagus.
01:28Esophageal Perforation-II: Clinical Manifestations and Management
Clinical Manifestations:
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...