目的研究人工耳蜗植入术(CI) 前颞骨高分辨率CT(HRCT)与内耳MRI的评 估价值。方法 对104例(110耳)拟行CI治 疗的感音神经性耳聋(SNHL)患者分别进行 HRCT和MRI检查，分析两种检查方法对内 耳解剖结构及相关病变检查效果。结果 颞骨HRCT与MRI对急性化脓性中耳炎、大 前庭导水管综合征、耳蜗发育不良检出一 致性较好，对神经纤维瘤、共同腔畸形、 Mondini畸形、乳突气化不良、乙状窦加 深或前移检出一致性尚可，对Michel畸 形、内听道内蜗神经缺失、耳蜗未发育、 骨化性迷路炎、囊状耳蜗-前庭畸形、颈 静脉球高位检出一致性较差；颞骨HRCT所 测各项解剖数值与解剖测量差异无统计学 意义(P>0.05)。结论 颞骨HRCT和MRI用于 CI术前检查可清晰、客观的显示内耳及周 围解剖结构和异常情况，为手术治疗提供 准确参考意见，但两种方法各有优势和不 足，联合应用则可取得互补效果，对提高 诊断准确性和治疗效果具有重要意义。

Objective To evaluate the value of preoperative temporal high resolution computed tomography (HRCT) and inner ear MRI in cochlear implants (CI). Methods A total of 104 cases (110 ears) of patients with sensorineural hearing loss (SNHL) who were scheduled to undergo CI therapy were given HRCT and MRI. The examination effects of the two examination methods on the anatomy of inner ear and related lesions were analyzed. Results The detection consistency of temporal HRCT and MRI was good in acute suppurative otitis media, large vestibular aqueduct syndrome and cochlear dysplasia, and the detection consistency was fair in neurofibroma, common cavity malformation, Mondini malformation, poor mastoid gasification and deepened or forward migration sigmoid sinus, but the detection consistency was poor in Michel malformation, inner auditory canal cochlear nerve loss, cochlear non-development, ossification labyrinthosis, cystic-vestibular malformation and high jugular bulb. There was no significant difference in the anatomic values and anatomical measurements of each item by temporal HRCT (P>0.05). Conclusion Temporal HRCT and MRI for preoperative examination of CI can clearly and objectively show the structure and abnormalities of inner ear and surrounding anatomy, and can provide accurate reference for surgical treatment, but the two methods have their own advantages and disadvantages, and combined application can achieve complementary effects, and has important significance for improving the accuracy of diagnosis and treatment effects.