目的分析人工耳蜗植入术中发生脑脊液“井喷”的原因及影像学特点。方法回顾性分析1998年1月~2011年7月2238例人工耳蜗植入患者中,发生脑脊液井喷的134例患者术前的影像学特征。结果134例人工耳蜗植入术中发生脑脊液“井喷”的病例中,大前庭导水管合并与内耳有骨性交通11例,大前庭导水管伴Mondini畸形合并内听道与内耳骨性交通28例,Mondini畸形伴内听道底与内耳骨性交通88例,耳蜗与内听道共同腔畸形7例。结论伴有内听道底骨缺损与内耳相通的任何内耳畸形患者,人工耳蜗植入术中必然发生脑脊液“井喷”。%Objective To analyze the causes and imaging features of cases with cerebrospinal fluid (CSF) gusher during cochlear implant surgery. Methods The preoperative imaging examination results of 134 cases with CSF gusher during cochlear implantation were retrospectively analyzed. Results According to the CT and MRI findings, there were 11 cases with bony defects in the fundus of the internal acoustic meatus plus large vestibular aqueduct, 28 cases with bony defects in the fundus of the internal acoustic meatus plus large vestibular aqueduct and Mondini malformation, 88 cases with bony defects in the fundus of the internal acoustic meatus plus Mondini malformation only and 7 cases with common cavity between cochlea and internal acoustic meatus in all the 134 cases. Conclusion CSF gusher occurred in all inner ear malformation cases with bony defects of internal acoustic meatus fundus communicating with inner ear during cochlear implant surgery.
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