Functional imaging of vocal fold vibration: Digital multislice high-speed kymography

Wittenberg, Thomas; Tigges, Monika; Mergell, Patrick; Eysholdt, Ulrich

doi:10.1016/s0892-1997(00)80087-9

Cited by 112 publications

(79 citation statements)

References 19 publications

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“…The first published texts about videokymography were not concerned with specific details about correct introduction of the telescope [1][2][3][4][5] . One of the most recent publications 6 warned about the position of the telescope during the recording of videokymographic images, when they studied the variability of vocal fold vibration pattern with videokymography.…”

Section: Resultsmentioning

confidence: 99%

“…We could see that the three subjects presented asymmetrical values, both for closing and opening times, shown in Graphs [1][2][3][4][5][6] . Conversely, as to maximum opening, the values were practically symmetrical for the three tested subjects, as shown in Graphs 7 to 9.…”

Section: Graphmentioning

confidence: 99%

“…The technique was developed to facilitate the assessment of vocal folds, providing more accuracy and objectivity in the results, especially when stroboscopy failed [2][3][4] . Videokymography used digital technology for ultra fast analysis of vibration and even though it has been developed for the study of the vocal folds, it may be useful in other vibration systems.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, we did not observe direct correlation between subglottic pressure and difference in the movement phase of mucosa wave. Two careful measurements should be taken during videokymography assessment: the first one refers to the fact that images are obtained in different points of the vocal folds owing to the existing differences in vibration pattern in all their extension; the second, the position of the telescope during the images, which should remain always in the selected line 3 . The impossibility to visually control the selected cordal region during the performance of videokymography is a limitation of the technique.…”

Section: Introductionmentioning

confidence: 99%

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A influência da angulação na posição do telescópio na videoquimografia laríngea

Pontes

Madazio

Behlau

et al. 2005

Rev. Bras. Otorrinolaringol.

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Vi deokymography is a new high-speed imaging techniqueto investigate vocal fold vibration. The system has been considered useful in the analysis of irregular signals, making it possible to observe left-right asymmetries, open quotient, propagation of mucosal waves, and movement of the upper and lower margins. The aim of the present study was to verify the correspondence of the videokymographic images with larynx exposition angle variation. Three Brazilian adult female subjects, with no vocal complains, were evaluated. Videokymographic images were obtained with the laryngeal endoscope 90o positioned on the measuring line, perpendicular to the glottal axis -zero degree, during a sustained "ae" vowel, using habitual frequency and intensity. The procedure was repeated twice and adjusted by rotating the camera in fifteen degrees from the perpendicular line to the right and to the left. The results showed clear differences depending on the position of the endoscope, suggesting the standardization of laryngeal exposition to interpretate videokymographic images correctly.

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Section: Resultsmentioning

confidence: 99%

Section: Graphmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A influência da angulação na posição do telescópio na videoquimografia laríngea

Pontes

Madazio

Behlau

et al. 2005

Rev. Bras. Otorrinolaringol.

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“…Thus, image changes, as movements are, can be determined and visualized in a compact manner. In the field of medical imaging it is applied in different scenarios as CT reconstruction [8] or vocal fold analysis [9].…”

Section: Digital Kymographymentioning

confidence: 99%

Digital Kymography for the Analysis of the Opening and Closure Intervals of Heart Valves

Friedl

König

Kondruweit

et al. 2011

Bildverarbeitung Für Die Medizin 2011

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Abstract. The opening and closure intervals of heart valves are important factors regarding an optimal blood flow. Using endoscopic video recordings of heart valves, digital kymography can be a method to visualize and to describe the opening and closure intervals. Based on an adequate segmentation of the kymograms, a quantitative description becomes available for the opening and closure characteristics. Furthermore, by normalizing the measured results, comparisons of mean heart valve oscillations can be achieved. Here, a comparison of artificial with native heart valves obtained under physiological conditions, indicates clear differences in the opening and closure intervals.

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High-Speed Laryngeal Imaging Compared With Videostroboscopy in Healthy Subjects

Kendall¹

2009

Arch Otolaryngol Head Neck Surg

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Functional imaging of vocal fold vibration: Digital multislice high-speed kymography

Cited by 112 publications

References 19 publications

A influência da angulação na posição do telescópio na videoquimografia laríngea

A influência da angulação na posição do telescópio na videoquimografia laríngea

Digital Kymography for the Analysis of the Opening and Closure Intervals of Heart Valves

High-Speed Laryngeal Imaging Compared With Videostroboscopy in Healthy Subjects

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