Cone Beam and CT Scan for the Diagnosis of Otosclerosis (TACOS)

Comparison of Cone Beam With CT Scan for the Diagnosis of Otosclerosis

Computed tomography scan (CT) is routinely used for the diagnosis and the pre-operative assessment of otosclerosis.

The cone-beam computed tomography (CBCT) is a imaging technique with reduced irradiating and, therefore, could replace the CT.

In this study, a CBCT will be proposed to all patients undergoing a CT exam for the diagnosis and/or the pre-operative assessment of an otosclerosis.

The results of the CBCT will be compared to those of the CT scan.

Inclusion Criteria:

• CT scan indicated for the diagnosis and pre-operatice assessment of an otosclerosis

Exclusion Criteria:

• Pregnancy
• Breast feeding
• Patient under a legal protection procedure
• Patient denying to participate to the study
• Lack of affiliation to a social security system