Phonation threshold pressure estimation using electroglottography in an airflow redirection system.
Phonation threshold pressure estimation using electroglottography in an airflow redirection system.
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DOI：
10.1002/lary.20611
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发表时间：
2009-12
期刊：
影响因子：
2.6
通讯作者：
Jiang, Jack J.
中科院分区：
文献类型：
--
作者：
Rieves, Adam L.;Regner, Michael F.;Jiang, Jack J.
关键词：
本研究提出了估计发声阈值压力（PTP）的非侵入性使用气流重定向到气动电容系统。前瞻性研究。受试者对着装置发声，装置会机械地中断气流，并将气流重定向到气动电容器中。每次审判中断5次。PTP被估计为发声偏移时声门下压（SGP）和跨声门下压之间的差值。新的方法进行了测试的一致性在20个正常的人类受试者在低（75分贝）和高（85分贝）的声压级。在气管切开患者身上测试了该器械的有效性。平均SGP为9.02 ± 3.27 cm H2O，平均PTP为3.68 ± 1.41 cm H2O。受试者内变异系数（受试者内一致性的测量）为0.33 ± 0.23。在75 dB和85 dB时，SGP平均值之间存在统计学显著差异，但PTP无统计学显著差异。在气管切开患者中，接受的SGP与实验SGP之间的相关系数为0.947（p<0.001）。测量值与先前报告的值一致，受试者内变异性较低，表明器械一致。对气管切开患者的测试证明了有效性。需要更多的研究来确定该设备在区分正常和病理声音方面的灵敏度和特异性。该装置可能具有临床应用，作为估计PTP和指示喉部健康可能异常的非侵入性和可靠的方法。
The present study proposed to estimate phonation threshold pressure (PTP) non-invasively using airflow redirection into a pneumatic capacitance system. Prospective study. Subjects phonated into the device, which interrupts airflow mechanically and redirects the flow into a pneumatic capacitor. Five interruptions were effected per trial. PTP was estimated as the difference between subglottal pressure (SGP) and transglottal pressure at phonation offset. The novel method was tested for consistency in 20 normal human subjects at low (75 dB) and high (85 dB) sound pressure levels. The device was tested for validity on a tracheotomy patient. Mean SGP was 9.02 ± 3.27 cm H2O and mean PTP was 3.68 ± 1.41 cm H2O. Intrasubject coefficient of variation, a measure of intrasubject consistency, was 0.33 ± 0.23. Statistically significant differences existed between the means of SGP but not PTP at 75 dB and 85 dB. The correlation coefficient between accepted and experimental SGP in a tracheotomy patient was 0.947 (p<0.001). Measurements corresponded well to previously reported values, and intrasubject variability was low, indicating the device was consistent. Testing on a tracheotomy patient demonstrated validity. More research is needed to determine the sensitivity and specificity of the device in differentiating between normal and pathological voices. This device may have clinical application as a non-invasive and reliable method of estimating PTP and indicating that laryngeal health is likely abnormal.
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DOI：
10.1007/bf02477320
发表时间：
1975-01-01
期刊：
MEDICAL & BIOLOGICAL ENGINEERING
影响因子：
--
作者：
KITZING, P;LOFQVIST, A
通讯作者：
LOFQVIST, A
影响因子：
1.4
作者：
Kearney, PR;Poletto, CJ;Ludlow, CL
通讯作者：
Ludlow, CL
影响因子：
1.4
作者：
Jiang, Jack J.;Regner, Michael F.;Pauls, Steven
通讯作者：
Pauls, Steven
影响因子：
1.4
作者：
Jiang, J;Stern, J
通讯作者：
Stern, J
影响因子：
1.4
作者：
KITAJIMA, K;TANAKA, K
通讯作者：
TANAKA, K