Measurement of Hyoid and Laryngeal Displacement in Video Fluoroscopic Swallowing Studies: Variability, Reliability, and Measurement Error

被引：0
作者：
Isaac Sia
Pamela Carvajal
Giselle D. Carnaby-Mann
Michael A. Crary
机构：
[1] University of Florida,Department of Speech, Language, and Hearing Sciences, College of Public Health and Health Professions
[2] University of Florida,Department of Behavioral Science and Community Health, College of Public Health and Health Professions
来源：
Dysphagia | 2012年 / 27卷
关键词：
Hyoid and laryngeal displacement; Video fluoroscopy; Measurement variability; Measurement error; Swallowing; Deglutition; Deglutition disorders;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Video fluoroscopy is commonly used in the study of swallowing kinematics. However, various procedures used in linear measurements obtained from video fluoroscopy may contribute to increased variability or measurement error. This study evaluated the influence of calibration referent and image rotation on measurement variability for hyoid and laryngeal displacement during swallowing. Inter- and intrarater reliabilities were also estimated for hyoid and laryngeal displacement measurements across conditions. The use of different calibration referents did not contribute significantly to variability in measures of hyoid and laryngeal displacement but image rotation affected horizontal measures for both structures. Inter- and intrarater reliabilities were high. Using the 95% confidence interval as the error index, measurement error was estimated to range from 2.48 to 3.06 mm. These results address procedural decisions for measuring hyoid and laryngeal displacement in video fluoroscopic swallowing studies.
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页码：192 / 197
页数：5
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