The present study was undertaken to assess diagnostic role of High Resolution Multi-detector Computed Tomography (HRMDCT) of temporal bone in the evaluation of Chronic Suppurative Otitis Media (CSOM) and to correlate intraoperative and HRCT findings in CSOM in selective cases Material and Methods: In our prospective study, a total of 57 who presented with CSOM and referred to Radiodiagnosis department were included in this study. The suspected patients were subjected to HRMDCT of Temporal bone using GE Bright speed Elite16 multi slice CT machine with 0.6mm plain axial and coronal slices with multiplanar reformations. Results: The reported findings were correlated with clinical and surgical findings in subset of cases. Sensitivity, Specificity of HRMDCT with respect to clinical and surgical correlation in selective cases was evaluated. Among 30 surgical cases, most of them were atticoantral (53.4%) followed by tubotympanic CSOM (46.6%). On surgical correlation, HRCT has a high sensitivity (84.36%), specificity (80%), PPV of 90.4% and accuracy of 90% in the diagnosis of type of CSOM. A significant association with p value<0.05 was seen for cholesteatoma, ossicle, bone, masotoiditis, scutum, tegmen and prussack space involvement. HRCT had a high sensitivity and specificity in detection of cholesteatoma (86.4%, 88.9%). Conclusion: HRCT of Temporal bone has a good sensitivity, specificity in the diagnosis of type of CSOM with respect to surgical correlation. HRCT of Temporal bone affords essential information regarding the disease extent, associated complications, aiding clinicians in deciding the appropriate surgical planning and management, thereby making HRMDCT an essential pre workup diagnostic tool.
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