论文部分内容阅读
采用Fridman相位谱分析方法—同步度(SM)测试法,用40正常耳,建立40,60和80dBnHL短声诱发的听觉脑干反应(ABR)的标准相位谱构型,各强度ABR相位谱主要由A,B,C和D四个成分构成。基于相应强度的标准相位谱构型,对测试组Ⅰ(49耳)、Ⅱ(46耳)和Ⅲ(40耳)的耳聋患者分别进行40、60、80dB ABR谱构型分析,客观诊断耳聋率依次为95.9％、93.5％和95.0％。各强度诊断率同测试组实际聋耳占有率的x~2检验无差别,即三种强度ABR相位谱构型应用于耳聋诊断的效果一致,均能达到临床常规诊断技术的精度。
The standard phase spectrum of auditory brainstem response (ABR) evoked by 40,60 and 80 dBnHL short beacons was established by Fridman phase spectrum analysis (SMM) with 40 normal ears. The ABR phase spectrum of each intensity was mainly By the A, B, C and D four components. Based on the standard phase spectrum of the corresponding intensities, we analyzed the ABR spectra of 40, 60, and 80 dB in patients with deafness in group Ⅰ (49 ears), Ⅱ (46 ears) and Ⅲ (40 ears), and objectively diagnosed deafness rate Followed by 95.9%, 93.5% and 95.0%. There was no difference between the strength diagnostic rate and the actual hearing-impaired ear occupancy rate in the test group, that is, the ABR phase configuration of three intensities applied to the diagnosis of deafness has the same effect, all of which can achieve the accuracy of clinical routine diagnostic techniques.