Semi-automatic tracking of hyolaryngeal coordinates in videofluoroscopic swallowing studies
Semi-automatic tracking of hyolaryngeal coordinates in videofluoroscopic swallowing studies
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DOI：
10.1080/21681163.2015.1046190
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发表时间：
2017-01-01
影响因子：
1.6
通讯作者：
Pearson, William, Jr.
中科院分区：
文献类型：
--
作者：
Natarajan, Rajkiran;Stavness, Ian;Pearson, William, Jr.
临床评估吞咽困难的金标准是电视透视吞咽研究。吞咽视频的详细定量分析对于提高我们对健康和病理吞咽的理解具有巨大的潜力。此类分析的一个关键限制是，对视频帧上的解剖标志进行手动注释是乏味、耗时且可能不可靠的。在这项研究中，我们演示了一种计算机辅助工作流程，该工作流程使用 Kanade-Lucas-Tomasi 跟踪器来半自动化收集整个吞咽周期坐标数据的过程。我们针对从各种来源获得的正常吞咽受试者的八张荧光视频照片测试了工作流程。结果分析表明，该工作流程可以促进准确确定各种舌喉运动学变量的过程，并生成有助于吞咽生物力学模拟和形态测量分析的坐标。
The gold standard for assessing dysphagia in the clinical setting is the videofluoroscopic swallowing study. Detailed, quantitative analysis of swallowing videos has significant potential to improve our understanding of healthy and pathological swallows. A key limitation of such analyses is that manual annotation of anatomical landmarks on video frames is tedious, time-consuming and potentially unreliable. In this study, we demonstrate a computer-assisted workflow that uses the Kanade-Lucas-Tomasi tracker to semi-automate the process of collecting coordinate data throughout a swallow cycle. We tested the workflow against eight videofluorographs of normal swallow subjects obtained from a variety of sources. Analysis of results showed that this workflow can facilitate the process of accurately determining a variety of hyolaryngeal kinematic variables and generate coordinates useful for biomechanical simulation and morphometric analysis of swallowing.