Back to Search
Start Over
The Value of HRCT in Stapes Fixations Corresponding to Hearing Thresholds and Histologic Findings
- Source :
- Otology & Neurotology. 33:1300-1307
- Publication Year :
- 2012
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2012.
-
Abstract
- To estimate the correlations between high-resolution computed tomography (HRCT) scans, preoperative audiometric findings and histopathologic results in stapes ankylosis.Retrospective case review.Tertiary referral center.A total of 57 patients with stapes ankylosis, who underwent unilateral stapedectomies were analyzed.Diagnostic and therapeutic.Preoperative HRCT examinations were performed in all cases. Findings of HRCT were categorized according to Marshall's grading system. Preoperative air-bone gaps (ABGs) and bone conduction (BC) thresholds were determined. Stapes footplates removed surgically were processed using hematoxylin and eosin staining.Active otosclerosis (n = 29) was demonstrated by HRCT with a sensitivity of 76.31%, whereas its sensitivity to establish inactive otosclerosis (n = 13, 61.9%) and nonotosclerotic stapes fixations (n = 15, 51.7%) was much lower. Nonotosclerotic stapes fixations were characterized by pure conductive hearing loss that was not associated with HRCT findings. HRCT grades showed statistically significant association with BC levels at the averages of 0.5-1-2 kHz frequencies in the group of ears with inactive otosclerosis, exclusively (p0.05).HRCT is a reliable imaging method in the preoperative diagnosis of different types of stapes fixations. Imaging findings should be evaluated together with clinical history and audiometric data for obtaining as precise diagnosis for stapes fixation as possible.
- Subjects :
- Adult
Male
medicine.medical_specialty
Tissue Fixation
Hearing loss
Ankylosis
Hearing Loss, Conductive
Computed tomography
Stapes Surgery
Audiology
Diagnosis, Differential
Humans
Medicine
Elméleti orvostudományok
Retrospective Studies
Stapes
medicine.diagnostic_test
business.industry
Pure tone
Reproducibility of Results
Auditory Threshold
Orvostudományok
Middle Aged
medicine.disease
Sensory Systems
Otosclerosis
Treatment Outcome
Otorhinolaryngology
Stapes ankylosis
Audiometry, Pure-Tone
Female
Neurology (clinical)
Tomography
Radiology
Audiometry
medicine.symptom
Tomography, X-Ray Computed
business
Bone Conduction
Subjects
Details
- ISSN :
- 15317129
- Volume :
- 33
- Database :
- OpenAIRE
- Journal :
- Otology & Neurotology
- Accession number :
- edsair.doi.dedup.....e797a1364eda61c99c6cf921a59242d6