Frank T, Ragland A E
Department of Communication Disorders, Pennsylvania State University, University Park.
Ear Hear. 1987 Dec;8(6):343-6. doi: 10.1097/00003446-198712000-00010.
The purpose of this study was to determine the repeatability of high-frequency, bone conduction thresholds and to increase the data base concerning high-frequency, bone conduction threshold levels. Bone conduction thresholds were obtained on 30 subjects having normal, low, and mid frequency (0.25 to 8 kHz) hearing thresholds within and across five test sessions using a Pracitronic KH 70 bone vibrator referenced to a Brüel and Kjaer 4930 mechanical coupler at 1, 4, 8, 10, 12, 14, and 16 kHz. Within and across sessions, the bone conduction thresholds were not significantly (p greater than 0.05) different at each frequency indicating that repeated testing without replacing the bone vibrator (within session) and with replacing the bone vibrator (across session) did not influence the threshold measurements. Clinical implications concerning high-frequency, bone conduction audiometry are discussed.
本研究的目的是确定高频骨导阈值的可重复性，并增加有关高频骨导阈值水平的数据库。使用Pracitronic KH 70骨振动器，在1、4、8、10、12、14和16 kHz频率下，以Brüel和Kjaer 4930机械耦合器为参考，对30名受试者在五个测试环节内及不同环节间进行骨导阈值测量，这些受试者具有正常、低频和中频（0.25至8 kHz）听力阈值。在各环节内及不同环节间，每个频率的骨导阈值均无显著差异（p大于0.05），这表明在不更换骨振动器（环节内）和更换骨振动器（不同环节间）的情况下进行重复测试，均不会影响阈值测量。文中还讨论了高频骨导听力测定的临床意义。
