在使用平面CT基于频率重定位的耳植入物用户中,语音,音色和音调感知:一个纵向前性研究
Melanie L Gilbert1, Rebecca M Lewis1, Mickael L D Deroche2
1Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, CA.
概括
用于耳植入物 (CI) 的基于计算机断层扫描 (CT) 的定制频率图没有改善整体语音和音乐感知. 然而,CT地图显示,对于频率与位置不匹配较少的用户来说,尤其是在低频听力中,CT地图显示了好处.
科学领域:
- 听力学 听力学是指听力学.
- 神经外科 神经外科
- 医疗成像医学成像
背景情况:
- 耳植入物 (CI) 使用默认的频率图,不考虑个体解剖或植入后的变化.
- 频率位置不匹配在CI用户中很常见,可能会影响听力结果.
- 高分辨率CT成像可以精确地绘制电极接触位置,以提供个性化的频率图.
研究的目的:
- 调查基于定制计算机断层扫描 (CT) 的频率图是否可以提高耳植入物 (CI) 用户的语音和音乐感知.
- 将基于CT的频率图与标准临床默认图的有效性进行比较.
主要方法:
- 10名经验丰富的CI用户 (14个CI耳朵) 接受了CT扫描,以创建基于CT的实验频率图.
- 参与者使用基于CT的地图一个月,然后进行语音和音乐感知测试.
- 在基于CT的实验图和制造商的临床默认图之间进行了性能比较.
主要成果:
- 使用基于CT的地图,没有观察到在语音或音乐感知方面显著的群体水平改善.
- 个人结果各不相同,有些用户比其他人更有好处.
- 在安静状态下提高语音感知与尾耳区域中更好的电极对齐相关.
结论:
- 严格的基于CT的频率映射为CI用户提供了极小的尖端-中阵列频率-位置不匹配的好处.
- 在过于深或浅的电极插入的情况下,基于CT的地图的有效性可能会受到限制.
- 研究的局限性包括潜在的适应偏差,干预偏差和小样本大小.
相关概念视频
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