Reliability of High-Resolution CT Scan in Diagnosis of Otosclerosis

Lagleyre, S.; Sorrentino, Tommaso; Calmels, M.; Shin, Young-Je; Escudé, B.; Deguine, Olivier; Fraysse, Bernard

doi:10.1097/mao.0b013e3181c2a084

Cited by 93 publications

(116 citation statements)

References 17 publications

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“…Point-biserial correlation coefficients were computed. In the sABG group, a small positive correlation was observed between poor audiometric outcome and negative preoperative CT scan, which is in line with the findings of Lagleyre et al [2009]. Note, however, that this correlation was not statistically significant, probably because of the presence of small samples of patients.…”

Section: Resultssupporting

confidence: 84%

“…The correlation (even if it is weak because of the small sample) in our study between poor audiometric results and negative preoperative CT in the sABG group is also a reason to make preoperative CT scans before surgery. In the same way Lagleyre et al [2009] demonstrated a high sensitivity of high-resolution CT scan for otosclerosis (95.1%) and a relationship between negative or doubtful CT scan, which were associated with the highest incidence of stapes footplate complications. Although many centers (as ours) still do not do it systematically, it seems that a preoperative CT scan is mandatory before all otosclerotic surgery.…”

Section: Audiometric Results After Stapedotomymentioning

confidence: 61%

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Audiometric Results after Stapedotomy Operations in Patients with Otosclerosis and Preoperative Small Air-Bone Gaps

et al. 2015

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Objectives: The efficacy of stapedotomies performed on patients with small air-bone gaps (<25 dB) was compared with the efficacy of the operation in patients who had otosclerosis with high air-bone gaps (≥25 dB). Methods: This retrospective study evaluates the short-term postoperative air and bone conduction thresholds and air-bone gaps after 182 CO₂ laser stapedotomies. Results: A significantly smaller air-bone gap and lower air conduction thresholds after surgery were observed in the group of patients who underwent surgery with preoperative air-bone gaps of less than 25 dB. Bone conduction thresholds improve in the group with small air-bone gaps after surgery. Conclusions: The results after stapedotomies are good even if the preoperative air-bone gap is small and the overall risk of hearing deterioration due to stapes surgery remains low.

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Section: Resultssupporting

confidence: 84%

Section: Audiometric Results After Stapedotomymentioning

confidence: 61%

Audiometric Results after Stapedotomy Operations in Patients with Otosclerosis and Preoperative Small Air-Bone Gaps

et al. 2015

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“…Oblique axial plane could enhance the CT analysis of the stapes and provide useful biometric landmarks in pathologic conditions (5). High-resolution computed tomography scan (HRCT scan) is good for the precise anatomical details in the middle ear (10). we established the diagnosis of otosclerosis with avascular necrosis of stapes crura during surgery work and with histopathological finding of stapes suprastructure.…”

Section: Discussionmentioning

confidence: 99%

Avascular Necrosis of Stapes Crura in One Case of Operated Otosclerosis

Erdoglija

Sotirović

Jacimovic

et al. 2012

Acta Med. (Hradec Kralove, Czech Repub.)

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Summary: Unilateral otosclerosis combined with avascular necrosis of stapes crura is a rare entity. it should be considered in a case of high grade otosclerosis. Symptoms are the same as in patients who suffer from common otosclerosis. Patients complain on progressive hearing loss and tinnitus. The diagnosis is made clinically by conventional audiologic evaluation and radiologically by x-ray mastoid Schuller's view and CT scan. HRCT scan makes visible all parts of ossicular chain and gives surgeon some information about ossicular chain damage. Surgery with stapedotomy and stapes prosthesis implantation in a case of otosclerosis with avascular necrosis of stapes crura can be success therapy to improve patient's hearing

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“…The disease sometimes involves only the cochlear endosteum and can manifest with sensorineural hearing loss (SNHL). This condition is called cochlear otosclerosis and accounts for 1% of patients with otosclerosis [4] . Treatment options for otosclerosis include medical treatment, hearing aids, and surgical management.…”

Section: Introductionmentioning

confidence: 99%

Correlation between the Size, CT Density of Otosclerotic Foci, and Audiological Tests in Cases of Otosclerosis

Abdelghany¹,

Osman²,

Botros³

2014

Int Adv Otol

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OBJECTIVE:To evaluate the relation between the Computed tomography (CT) densities, sizes of otosclerotic foci, and the bone conduction threshold (BC) and air bone gap (ABG) in cases of otosclerosis as well as between the lesions sizes and their CT densities. MATERIALS and METHODS:We included CT examinations of the temporal bones of 25 patients (34 ears, 9 cases were bilateral) with clinical and audiological diagnosis of otosclerosis. We measured the otosclerotic foci in their maximum dimensions as well as their CT densities and correlated them to the BC thresholds and ABG. We also studied the correlation between the sizes of the otosclerotic foci and their CT densities. RESULTS:There were no significant statistical correlations between the lesion size or CT density to either the BC or ABG in any of the CT grades of otosclerosis or any statistical correlation between the CT density and lesion size in any of the grades of otosclerosis. CONCLUSION:CT is essential, in addition to clinical and audiological tests, in confirming the diagnosis of otosclerosis; however, neither the sizes of the lesions nor their CT densities correlate with the hearing deficit. The lesions sizes do not correlate to their CT densities, and there is no statistically significant difference in CT densities of early and extensive grades.

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Reliability of High-Resolution CT Scan in Diagnosis of Otosclerosis

Cited by 93 publications

References 17 publications

Audiometric Results after Stapedotomy Operations in Patients with Otosclerosis and Preoperative Small Air-Bone Gaps

Audiometric Results after Stapedotomy Operations in Patients with Otosclerosis and Preoperative Small Air-Bone Gaps

Avascular Necrosis of Stapes Crura in One Case of Operated Otosclerosis

Correlation between the Size, CT Density of Otosclerotic Foci, and Audiological Tests in Cases of Otosclerosis

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