CAJ | 학술논문

　　目的建立正常成年人外耳道记录法耳蜗电图（ECochG）的正常值。方法健康成年人16例（32耳），金箔电极置于外耳道，记录ECochG，分析SP/AP幅度比和及其面积比等正常值。结果在95和90 dB nHL刺激强度时，外耳道记录的正常成年人ECochG SP/AP幅度比分别为0.16±0.12和0.12±0.10，SP/AP面积比分别为1.14±0.27和1.05±0.24，N1幅度较ABR的波Ⅰ幅度明显增大(P＜0.01)。结论建立了外耳道记录的正常成年人ECochG SP/AP幅度比和面积比正常值，可供临床应用。
　　목적건립정상성년인외이도기록법이와전도（ECochG）적정상치。방법건강성년인16례（32이），금박전겁치우외이도，기록ECochG，분석SP/AP폭도비화급기면적비등정상치。결과재95화90 dB nHL자격강도시，외이도기록적정상성년인ECochG SP/AP폭도비분별위0.16±0.12화0.12±0.10，SP/AP면적비분별위1.14±0.27화1.05±0.24，N1폭도교ABR적파Ⅰ폭도명현증대(P＜0.01)。결론건립료외이도기록적정상성년인ECochG SP/AP폭도비화면적비정상치，가공림상응용。
Objective To establish normal values of ECochG recorded from outer ear canal among healthy adults with normal hearing. Methods Included in this study were 16 healthy adults (32 ears) with normal hearing, with their ECochG recorded from outer ear canal by Gold Foil Tiptrode electrode (TTE). Then, analyzed were the range of SP/AP amplitude ratio and area ratio to establish normal values of ECochG for clinical practical reference. Results The ranges of SP/AP amplitude ratio and area ratio were 0.16±0.12, 0.12±0.10 and 1.14±0.27, 1.05±0.24 at the stimulating intensity of 95 and 90 dB nHL respectively for ECochG of healthy adults recorded from outer ear canal, with its amplitude of N1 significantly higher than that of wave Ⅰin ABR (P<0.01). Conclusion The normal reference values of SP/AP amplitude ratio and area ratio of ECochG are established by a recording procedure from outer ear canal, which provide a reference standard for clinical diagnosis.