Related Experiment Videos
Acute mesenteric ischemia: diagnosis with contrast-enhanced CT
P G Taourel1, M Deneuville, J A Pradel
1Department of Medical Imaging, Hôpital Saint-Eloi, Montpellier, France.
Radiology
|June 1, 1996
Summary
Dynamic, contrast-enhanced computed tomography (CT) accurately diagnoses acute mesenteric ischemia. Specific CT findings like thrombosis or gas indicate the condition, aiding in prognosis determination.
Area of Science:
- Radiology
- Gastroenterology
- Emergency Medicine
Background:
- Acute mesenteric ischemia is a surgical emergency with high mortality.
- Early and accurate diagnosis is crucial for patient outcomes.
- Conventional diagnostic methods can be limited.
Purpose of the Study:
- To assess the diagnostic accuracy of dynamic, contrast-enhanced computed tomography (CT) for acute mesenteric ischemia.
- To identify specific CT findings indicative of acute mesenteric ischemia.
Main Methods:
- Retrospective review of CT scans from patients with surgically confirmed acute mesenteric ischemia (study group) and those with suspected but disproved ischemia (control group).
- Reviewers blinded to diagnoses evaluated CT scans for specific signs of ischemia.
- Statistical analysis of sensitivity, specificity, and accuracy.
Main Results:
- Specific findings like arterial/venous thrombosis, intramural/portal venous gas, lack of bowel enhancement, and infarcts had >95% specificity but <30% sensitivity.
- Detection of at least one of these signs yielded a sensitivity of 64%, specificity of 92%, and accuracy of 75% for diagnosing acute mesenteric ischemia.
- The study included 39 patients in the ischemia group and 24 in the control group.
Conclusions:
- Dynamic, contrast-enhanced CT is a valuable tool for diagnosing acute mesenteric ischemia.
- CT aids in determining the prognosis of patients with acute mesenteric ischemia.
- Specific CT findings, while not always sensitive, are highly specific for the condition.