van de Heyning P H, van Camp K J, Creten W L, Vanpeperstraete P M
J Speech Hear Res. 1982 Dec;25(4):611-8. doi: 10.1044/jshr.2504.611.
Two-component tympanometry with a high probe-tone frequency enables a better distinction to be made between mobile but normal middle-ear systems and middle-ear systems suffering from necrosis, luxation, or disruption. Susceptance and conductance tympanograms obtained from 14 patients with confirmed pathological middle-ear lesions and 8 postmortem temporal bones, experimentally manipulated either surgically or with a 1 N HCl solution, were compared to tympanograms obtained from 80 normal subjects of an earlier study. With a 660-Hz probe tone, normal middle ears generate bell-shaped or normal sharp W-shaped patterns, whereas the pathologies of the middle ear give rise to irregular multi-extrema tympanograms. The differences between the two types of multi-extrema curves are discussed in detail. The use of phase-angle tympanometry is recommended to enable a quick and accurate distinction between normal and abnormal types of multi-extrema tympanograms. This study also points out clearly that 220-Hz tympanograms do not allow clear differentiation between pathological and normal middle ears.
采用高探测音频率的双成分鼓室声导抗测量法能够更好地区分活动正常的中耳系统与患有坏死、脱位或破裂的中耳系统。从14例确诊患有中耳病理性病变的患者以及8块经手术或用1 N盐酸溶液进行实验性处理的死后颞骨中获取的声纳导纳和鼓室导抗图，与早期研究中80名正常受试者的鼓室导抗图进行了比较。使用660 Hz探测音时，正常中耳会产生钟形或正常尖锐的W形模式，而中耳病变则会导致不规则的多极值鼓室导抗图。详细讨论了两种多极值曲线之间的差异。建议使用相位角鼓室声导抗测量法，以便快速准确地区分正常和异常类型的多极值鼓室导抗图。这项研究还明确指出，220 Hz鼓室导抗图无法清晰区分病理性中耳和正常中耳。
