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对208例眼震电图颅内病变64例(65耳)、内耳病变62例(72耳)和正常者82例(164耳)经数字化后进行分析,提示最大幅值频率(基频)、两侧基频差、功率谱图型及其能量组成中的高频成分有一定的特征。正常者的基频>1Hz,两侧基频差<1Hz,功率谱图呈“八”型并具有频率分量。病理性者基频多<1Hz,两侧基频差>1Hz,内耳或Ⅷ颅神经功能严重减遐者的功率谱图多呈“L”型,并且频率分量不明显。如果基频<0.5Hz,谱图呈“L”型,并且频率分量缺失者,多提示内耳或Ⅷ颅神经功能已近丧失。如能结合临床其他检查,将有助于对内耳或Ⅷ颅神经病变的鉴别诊断。
Sixty-four cases (65 ears) of intraocular electrogram of 208 cases, 62 cases (72 ears) of inner ear disease and 82 cases (164 ears) of normal subjects were digitized and analyzed, which indicated that the maximum amplitude frequency (fundamental frequency) Both sides of the fundamental frequency difference, power spectral pattern and its energy composition of high-frequency components have certain characteristics. Normal frequency> 1Hz, both sides of the fundamental frequency difference <1Hz, the power spectrum was “eight” type and has a frequency component. Pathological frequency of more than 1Hz, both sides of the fundamental frequency difference> 1Hz, the inner ear or Ⅷ cranial nerves severe dysfunction were mostly “L” power spectrum, and the frequency component is not obvious. If the fundamental frequency <0.5Hz, the spectrum was “L” type, and the lack of frequency components, and more tips of the inner ear or Ⅷ cranial nerve function has been nearly lost. If combined with other clinical tests, will help differentiate the diagnosis of inner ear or Ⅷ cranial neuropathy.