期刊
ACTA OTO-LARYNGOLOGICA
卷 137, 期 2, 页码 119-126出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00016489.2016.1221132
关键词
Multiplanar reconstruction; cochlear duct length; incomplete partition-type II; hypoplasia of cochlea
资金
- Guangxi Scientific Research and Technology Development Project [0592007-1]
Conclusion: The cochlear length (CL) and cochlear height (CH) measured through MPR will provide for more accurate quantitative diagnosis of inner ear malformation, and are subsequently convenient for calculating cochlear duct length (CDL) before cochear implant. Objectives: Qualitative and quantitative diagnosis of inner ear malformation in deaf patients through multiplanar reconstruction (MPR) was performed to provide a reference for cochlear implants. Methods: One hundred and two cases without sensorineural deafness and 560 patients with sensorineural deafness had MPR of temporal bone computed tomography performed to obtain the standardized cochlear-view and oblique coronal-view images. The inner ear radial lines were measured to formulate normal values for inner ear malformation diagnosing, and the CDL was estimated based on CL. Results: The normal range values of inner ear radial lines were measured and formulated, of which CL was 8.1-9.59mm and CH was 3.28-3.90mm. According to inner ear morphology and the normal values measured above, 61 cases of incomplete partition-type II (IP-II) and a high percentage (27/110, 24.5%) of hypoplasia of cochlea (HC) were diagnosed. The HC group was further divided into 1-turn, 1.5-turn, and 2-turn sub-groups, which had CDL of 15.98 +/- 1.48mm, 21.36 +/- 0.96mm, and 26.56 +/- 0.60mm, respectively.
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