Liu Yi-Kang, Qi Cheng-Lin, Tang Jie, Jiang Mu-Liang, Du Long, Li Zhen-Hua, Tan Song-Hua, Tang An-Zhou
a Department of Otorhinolaryngology Head and Neck Surgery , The First Affiliated Hospital of GuangXi Medical University , NanNing , GuangXi , PR China.
b Department of Radiology , The First Affiliated Hospital of GuangXi Medical University , NanNing , GuangXi , PR China.
Acta Otolaryngol. 2017 Feb;137(2):119-126. doi: 10.1080/00016489.2016.1221132. Epub 2016 Aug 31.
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.
Qualitative and quantitative diagnosis of inner ear malformation in deaf patients through multiplanar reconstruction (MPR) was performed to provide a reference for cochlear implants.
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.
The normal range values of inner ear radial lines were measured and formulated, of which CL was 8.1-9.59 mm and CH was 3.28-3.90 mm. 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 ± 1.48 mm, 21.36 ± 0.96 mm, and 26.56 ± 0.60 mm, respectively.
通过多平面重建（MPR）测量的耳蜗长度（CL）和耳蜗高度（CH）将为内耳畸形提供更准确的定量诊断，并且随后便于在人工耳蜗植入前计算耳蜗管长度（CDL）。
通过多平面重建（MPR）对聋患者的内耳畸形进行定性和定量诊断，为人工耳蜗植入提供参考。
对102例无感音神经性耳聋患者和560例感音神经性耳聋患者进行颞骨计算机断层扫描的MPR，以获得标准化的耳蜗视图和斜冠状视图图像。测量内耳径向线以制定内耳畸形诊断的正常值，并基于CL估计CDL。
测量并制定了内耳径向线的正常范围值，其中CL为8.1 - 9.59毫米，CH为3.28 - 3.90毫米。根据内耳形态和上述测量的正常值，诊断出61例不完全分隔II型（IP-II）和高比例（27/110，24.5%）的耳蜗发育不全（HC）。HC组进一步分为1圈、1.5圈和2圈亚组，其CDL分别为15.98±1.48毫米、21.36±0.96毫米和26.56±0.60毫米。
