Role of High-Resolution Computed Tomography to Evaluate the Abnormalities of Temporal Bone- Systematic Review Study

Abstract

Introduction: High resolution CT (HRCT) of the temporal bone delineates the bony and soft tissue anatomy with high accuracy. The excellent resolution of density differences among soft tissues is the main advantage of HRCT over conventional tomography. The temporal bone is a vital and complex anatomical structure which is located on the sides of the skull. A variation on standard CT called HRCT offers a direct visual view into the temporal bone that previously unavailable minute structural features. It plays a central role in housing and protecting essential sensory organs, auditory structures, and neural pathways. We studied those patients who had the following: normal temporal bone, middle ear cholesteatoma, trauma, anomalies, acoustic neuroma.

Objectives: To study the variations fracture of the temporal bone and assess acoustic neuroma, middle ear cholesteatoma, vascular anomalies, sutures and small canal of the temporal bone.

Discussion/Conclusions: In this study we include middle ear cholesteatoma, trauma, anomalies, acoustic neuroma in which we found that HRCT is a useful modality through which pre-operative assessment of temporal bone abnormalities can be done efficiently with a reasonable accuracy and precision for taking surgical decisions. Some of the analyzed structures can cause diagnostic problems when they are confused with fractures. Vascular anomalies have a potential bleeding risk and should be diagnosed prior to surgery. A profound knowledge of normal anatomy and anomalies of the temporal bones improves the quality of radiological findings.