Towards Fully Automated Determination of Laryngeal Adductor Reflex Latencies through High-Speed Laryngoscopy Image Processing

Towards Fully Automated Determination of Laryngeal Adductor Reflex Latencies through High-Speed Laryngoscopy Image Processing
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通过高速喉镜图像处理全自动测定喉内收肌反射潜伏期

DOI:
10.1007/978-3-662-56537-7_41
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Kahrs LA
Kahrs LA
中科院分区:
--
文献类型:
--
作者:
Fast JF;Ptok M;Jungheim M;Szymanski R;Ortmaier T;Kahrs LA

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喉部的保护性反射有助于避免异物侵入下呼吸道,从而导致吸入性肺炎。这些保护机制包括喉内收肌反射 (LAR),即声带的快速内收。到目前为止,LAR 潜伏期只能通过目视评估在水滴冲击刺激喉部期间和之后获得的喉镜高速视频序列来手动确定。在这里,我们提出了一种基于差异图像计算和光流分析的新颖图像处理算法,以更客观地确定 LAR 延迟。为了评估我们的原型算法,我们将一组示例序列获得的结果与两位专业语音专家给出的值进行了比较。结果显示LAR具有非常好的刺激检测性能。 LAR 起始检测对于我们的算法方法以及人类感知系统来说仍然具有挑战性,评估者间的可靠性较低就证明了这一点。
Protective reflexes of the larynx help to avoid intrusion of foreign particles into the lower airways, which can lead to aspiration pneumonia. These protective mechanisms include the Laryngeal Adductor Reflex (LAR), a rapid adduction of the vocal folds. Up to now, the LAR latency could only be determined manually by visually assessing laryngoscopic high-speed video sequences obtained during and after stimulation of the larynx by water droplet impact. Here, we present a novel image processing algorithm based on difference image calculation and optical flow analysis for a more objective LAR latency determination. To evaluate our prototype algorithm, we compared the results obtained for a set of example sequences with the values given by two expert phoniatricians. The results show a very good LAR stimulation detection performance. LAR onset detection remains challenging for our algorithmic approach as well as for the human perceptive system, as demonstrated by a low inter-rater reliability.
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发表时间: 2003-01-01
期刊: GERONTOLOGY
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DOI: --
发表时间: 2016
期刊: HNO (Berlin. Print)
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DOI: 10.1515/cdbme-2017-0050
发表时间: 2017
影响因子: --
作者:
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通讯作者: Kahrs LA