Abstract
Aim: To compare pre operative radiological findings (HRCT) with intra operative findings in unsafe CSOM patients.
Materials and Method: 42 cases of unsafe csom were examined clinically and then followed by surgery. HRCT of 0.5 mm sections in both axial and coronal planes was performed in all cases. Considering intra-operative findings as gold standard, a comparison and correlation was made with HRCT temporal bone.
Results: According to this study, HRCT temporal bone can identify structures such as facial nerve canal, dural plate, sinus plate, ossicles and soft tissue mass distribution easily. It is highly sensitive in identifying the condition of ear ossicles, soft tissue mass distribution in middle ear, mastoid pneumatisation, carotid canal and jugular canal with high specificity whereas less specific for facial nerve canal and sigmoid sinus plate erosion.
Conclusion: The present study states that HRCT temporal bone scan plays a very important role in diagnosing unsafe CSOM and its complications preoperative. Despite of a few pitfalls, it plays an excellent role in helping surgeons to plan the type of surgery for each and every case specifically.
Keywords: HRCT temporal bone, Unsafe CSOM, Intra-operative, Ossicles, Temporal bone.
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Corresponding Author
Dr. H. S. Sharma
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DOI: https://dx.doi.org/10.18535/jmscr/v7i2.178
