Risk Factors for Readmission and Reoperation in Patients Undergoing Bariatric Surgery: A Retrospective Observational Study

Abstract

Background: Accurate and early detection of brain tumors is critical for effective treatment planning and improving patient survival. Computed tomography (CT) scans are widely used due to their accessibility and speed, while magnetic resonance imaging (MRI) is valued for its superior image resolution and detailed visualization. This study aimed to compare the diagnostic accuracy of CT and MRI in identifying brain tumors.
Methods: A retrospective study was conducted involving 150 participants (aged 20–70 years) who underwent both CT and MRI scans for suspected brain tumors. Metrics including true positives (TP), true negatives (TN), false positives (FP), and false negatives (FN) were evaluated to determine sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and overall accuracy.
Results: CT scans achieved 88.2% sensitivity, 84.7% specificity, 79.4% PPV, 91.1% NPV, and 86.7% accuracy. MRI demonstrated 96.5% sensitivity, 91.8% specificity, 88.3% PPV, 98.4% NPV, and 94.2% accuracy. MRI was particularly effective in detecting small or posterior fossa lesions.
Conclusion: MRI outperformed CT in sensitivity, specificity, and overall diagnostic accuracy. Despite its higher cost, MRI should be prioritized in diagnostic workflows where precision is paramount. CT retains utility in emergency and resource-constrained settings.