AbstractBackground:The peritoneum is a serosal membrane that can be affected by a variety of pathological conditions, including primary and secondary tumors. Accurate imaging and diagnosis of peritoneal lesions are crucial for tumor staging and treatment planning.
Objectives: This study aims to evaluate the diagnostic performance of CT) Computed Tomography (and MRI (Magnetic Resonance Imaging (in detecting peritoneal lesions and correlating imaging findings with histopathological results.
Patients and Methods:A prospective observational study was conducted over one year at Benha University and Military Hospitals, involving 50 patients with clinical signs suggestive of peritoneal lesions. Patients underwent both CT and MRI, and imaging findings were correlated with histopathological results.
Results:Of the 50 patients, 44% had malignant tumors detected by CT, and 50% by MRI. Sensitivity and specificity for CT were 79.17% and 88.46%, respectively, while MRI showed higher sensitivity (95.83%) and specificity (92.31%). Peritoneal carcinomatosis had an average size of 4.5-5 cm on CT and MRI. MRI demonstrated superior performance with 94% accuracy. Significant differences were found in T1 signal intensity (p=0.02), with MRI showing higher sensitivity for lesion detection.
Conclusion: MRI outperformed CT in detecting peritoneal lesions, with higher sensitivity and specificity. MRI should be considered the primary imaging tool for peritoneal disease, especially in suspected carcinomatosis.
