The demonstration of the auditory ossicles by high resolution CT

Area of Science:

• Radiology
• Otology
• Medical Imaging

Background:

• Computerised tomography (CT) has advanced otologic diagnostics.
• High-resolution CT scanning systems offer improved imaging capabilities.

Purpose of the Study:

• To evaluate the utility of a high-resolution CT scanning system for otologic applications.
• To assess the effectiveness of CT in visualizing abnormalities of the petrous temporal bone and middle ear.

Main Methods:

• Utilized an EMI CT 5005 body scanner adapted for head and neck scanning.
• Employed a high-resolution facility for enhanced imaging of structures with high differential absorption.

Main Results:

• High-resolution CT effectively demonstrated abnormalities in the petrous temporal bone, particularly middle ear disease.
• Traumatic ossicular disruptions and congenital stapes abnormalities were visualized with high contrast, often surpassing conventional tomography.
• Imaging was achieved with acceptable radiation levels to the eye, lens, and cornea.

Conclusions:

• High-resolution CT scanning is a valuable tool for assessing the petrous temporal bone and middle ear.
• The technique demonstrates significant advantages over conventional pluridirectional tomography for specific otologic conditions.
• Further advancements in high-resolution CT technology may lead to its complete adoption, replacing existing imaging methods.