颞骨HRCT对儿童先天性耳聋的诊断价值

The value of high-resolution spiral CT scan of temporal bone in diagnosis of congenital hearing loss in children

目的:了解河南省儿童先天性耳聋颞骨畸形的发生率及特点,为临床提供必要的依据。方法:225例听力障碍的婴儿及先天性耳聋的儿童人工耳蜗植入前行颞骨HRCT筛查常规行横断面薄层扫描和多平面重组。结果:CT共检出颞骨畸形79例(104耳),包括外耳畸形25例(30耳)、中耳畸形16例(20耳)、内耳畸形54例(74耳),其中16例为合并畸形;单纯鼓室积液30例(42耳);其余116例颞骨无异常。35.1%患儿颞骨有畸形,51.6%患儿颞骨结构正常。结论:HRCT能很好显示儿童先天性耳聋的颞骨解剖异常,为临床治疗方案的正确制定提供重要的参考依据。

Objective： To understand the incidence and characteristics of temporal bone deformity in children with congenital hearing loss in Henan, provide necessary proof for clinical treatment. Methods： 225 infants with dysaudia and children with congenital hearing loss received high - resolution spiral CT scan and muhiplanar reformation of temporal bone before implantation of cochlear prosthetic device. Results： 79 cases （104 ears） were found with temporal bone deformity, including 25 cases （30 ears） of deformity of external ear, 16 cases （20 ears） of deformity of middle ear and 54 cases （74 ears） of deformity of inner ear, 16 cases had accompanied malformation; 30 cases （42 ears） were found with simple tympanic cavity effusion; 116 cases were froud with normal temporal bone. The percentages of temporal bone deformity and normal structure of temporal bone were 35.1% and 51.60/0 , respectively. Conclusion： The high - resolution spiral CT scan can display the anatomical abnormality of temporal bone in children with congenital hearing loss and provide an important basis for correct treatment of congenital hearing loss.