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Thursday, May 7, 2020 | History

2 edition of Quantification of videostroboscopic findings, measurements of the normal glottal cycle found in the catalog.

Quantification of videostroboscopic findings, measurements of the normal glottal cycle

Peak Woo

Quantification of videostroboscopic findings, measurements of the normal glottal cycle

by Peak Woo

  • 198 Want to read
  • 15 Currently reading

Published in St. Louis, MO : American Laryngological, Rhinological and Otological Society .
Written in English

    Subjects:
  • Glottis -- Physiology.,
  • Glottalization (Phonetics),
  • Videolaryngostroboscopy.

  • Edition Notes

    Other titlesQuantification of videostrobolaryngoscopic findings, measurements of the normal glottal cycle
    StatementPeak Woo.
    SeriesLaryngoscope -- v. 106, no. 3, pt. 2 (March 1996). Supplement no. 79, Laryngoscope -- no. 79
    The Physical Object
    Pagination27 p. :
    Number of Pages27
    ID Numbers
    Open LibraryOL22364955M

      Knowledge of vocal fold vibratory morphology in normal and pathologic phonation is important in understanding glottal airflow and acoustics. Although noninvasive measures of phonation such as photoglottography and electroglottography provide some information on vocal fold movement, inferences are required regarding which glottal events correspond to particular points on the Author: Gerald S. Berke, Bruce R. Gerratt, David G. Hanson. if a person can blow bubbles in a glass with a straw for more than 5 seconds they usually have enough sub glottal pressure for speech norm for conversational voice cm/h20 book says intraoral pressure mesures reflective of Ps VF stiffness, hypo/hyperfunction, incomplete glottal closure all .

    (Figure 4). The normal peripheral artery wave-form is triphasic (Figure 4). The first component is the consequence of initial forward flow during systole, and results in peak systolic velocity (PSV) measurements that are typically less than cm/s5 for each arterial segment. There is early diastolic flow reversal in the second phase of theFile Size: 1MB. Period and glottal width irregularities in vocally normal speakers. Journal of Voice. ; 22 (6)– (This study compared visual evaluations of the periodicity of the glottal cycle and width using videostroboscopy, HSV and HSV-based facilitative by:

      The findings in this study are consistent with those of previous videostroboscopic studies of glottal configuration in women that report a posterior glottic opening in 30%, seen more frequently in younger women. 5,10,13 This study found more variability in the ratings of glottic configuration in the women under by:   This paper summarizes recent technological advancements and insight into the role of stroboscopy in laryngeal imaging. the HSV recording yielded an average of frames per glottal cycle. In contrast, only one videostroboscopic frame (comprised of interlacing two consecutive video fields) is captured every eight glottal cycles.


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Quantification of videostroboscopic findings, measurements of the normal glottal cycle by Peak Woo Download PDF EPUB FB2

Quantification of Videostrobolaryngoscopic Findings‐Measurements of the Normal Glottal Cycle Willem Kersing and Philippe H. Dejonckere, Accuracy of Measurements on Digital Videostroboscopic Images of the Vocal Folds, Annals of Otology, Rhinology & Laryngology,6, (), (). Cited by: Videostrobolaryngoscopic (VSL) images of vocal fold behavior in 32 male and 33 female normal speakers were analyzed by computer.

Image analysis software enhanced the glottal image, allowing extraction of the glottal area. Frame‐by‐frame analysis produced 20 glottal area values for each glottal by:   The purpose of this study is to quantify the glottal gap and to examine the relationship between glottal gap and vocal function perioperatively in thyroplasty type I.

Glottal gap area was measured in 20 patients at the point of maximum closure of vocal fold vibration in digitized laryngeal stroboscopic images and was normalized by the square of vocal fold by: Quantification of videostroboscopic findings – measurement of the normal glottal cycle.

The Laryngoscope, (), Google Scholar. Woo, P. Laryngeal electromyography is a cost-effective clinically useful tool in the evaluation of vocal fold function. Meten aan stem. In: Peters H. et al. (eds) Registreren aan stem Author: H.F.M.

Peters, R. Bastiaanse, J. Van Borsel, P.H.O. Dejonckere, K. Jansonius-Schultheiss, Sj. Van de. In some cases, the vibration of normal vocal folds may become irregular (such as in Quantification of videostroboscopic findings – measurement of the normal glottal cycle.

Laryngoscope. Hanschmann H, Berger R. [Quantification of videostroboscopic vocal cord findings]. Laryngorhinootologie. Jan. 88(1) Noordzij JP, Woo P.

Glottal area waveform analysis of benign vocal fold lesions before and after surgery. Ann Otol Rhinol Laryngol.

May. (5) Schutte HK, Svec JG, Sram F. 10 Introduction to Videostroboscopy Katherine A. kendall Just like the beating of hummingbird wings, human vocal folds vibrate at a measurements of the normal glottal cycle book that is faster than can be perceived by the human eye.

The evaluation of vocal fold anatomy, mucosal color, and gross movement can be performed while illuminating the vocal folds with a constant light. It is generally assumed that normal glottal configuration is marked by complete glottal closure during the closed phase of phonation.

4 However, in studies of “normal” larynges, the pivotal finding of most is the variety of glottal configurations identified. 5–8 Casper et al. caution that in the absence of vocal fold pathologies, the difference between a normal larynx and one that is thought to be the cause of a voice disorder.

Meten is weten, onder dit adagium wekt het geen verbazing dat hard wordt gewerkt aan meten. Maar wat moeten we meten om te weten hoe de stem werkt. Meten wordt pas weten als je weet wat je wilt meten.

the measurements and calculations available in the various cardiac protocols as well as some other measurements which may be desired by using the generic tools available within the Vevo software.

Only the most commonly used measurements will be reviewed, however there are numerous others which are available and if a specific measurementFile Size: 1MB. Introduction Over the past 3 decades, expanding knowledge of vocal fold anatomy and physiology has revolutionized the clinical and surgical practice of laryngology.

Since Hirano's original description of the layered microstructure of the human vocal fold in the s, increasingly sophisticated diagnostic and surgical techniques have evolved. This year-old male patient with left vocal fold polyp has a topographic F 0 of Hz, right-to-left lateral phase difference (% of a glottal cycle), and anterior-to-posterior longitudinal phase difference (% of a glottal cycle).

There is a signal void (a nonvibrating area) where the polyp by: Evaluation of Stroboscopic Signs. Findings‐Measurements of the Normal Glottal Cycle. includes the subjective videostroboscopic findings of vocal fold bowing or atrophy and incomplete.

Behavioral management of unilateral vocal fold paralysis and paresis. Quantification of videostroboscopic findings—Measurement of the normal glottal cycle. Laryngoscopy, (Suppl. 79), 1– Crossref Google Scholar. Woodson, G. Author: Sarah L. Schneider. WOO P.

Quantification of videostroboscopic findings. Measure- ments of the normal glottal cycle. Laryngoscope ; DEJONCKERE PH, BRADLEY P, C LEMENTE P, et al. A basic protocol for functional assessment of voice pathology, especially for investi- gating the efficacy of (phonosurgical) treatments and evalua- ting new assessment Cited by: 8.

phase divided by the duration of the glottal cycle) [4Œ6] can be utilized to describe the variability of the Woo P. Quantification of videostroboscopic findings Œ measurement of the normal glottal cycle.

Laryngoscope ; (suppl. 79). Woo P. Quantification of videostrobolaryngoscopic findings- measurements of the normal glottal cycle. Laryngoscope ; (3 Pt 2, Suppl 79) [ Links ] Woo P, Colton R, Casper J, Brewer D. Diagnostic value of stroboscopic examination in hoarse patients. Visual analysis of glottal cycle montage generated from high speed imaging of 56 children revealed that children had greater open phase of glottal cycle compared to the closed phase for phonation at typical pitch and loudness.

30 The values of open quotient for adult subjects are within the normal ranges of the values for open quotient reported Cited by: Figure 1 A glottal cycle in the kymogram (a) ideal (b) pixelization in the laryngoscopically captured VKG (c) influence of pixelization on the detected glottal edges.

This imposes a problem on the glottal edge de tection algorithm to truthfully capture the glottal shape for further quantification. Woo P () Quantification of Videostrobolaryngoscopic Findings Measurements of the Normal Glottal Cycle.

The Laryngoscope Baken RJ, Orlikoff RF () Clinical measurement of speech and voice. San Diego: Cengage Learning, Cited by: 4. Behavioral Management of Unilateral Vocal Fold Paralysis and Paresis. Sarah L. Schneider; Quantification of videostroboscopic findings—measurement of the normal glottal cycle.

Laryngoscopy, (Suppl79), Behavioral Management of Unilateral Vocal Fold Paralysis and by: 3.9 Woo P. Quantification of videostrobolaryngoscopic findings—measurements of the normal glottal cycle.

Laryngoscope ; (3 Pt 2) (Suppl. 79) ; 10 Woo P, Colton R, Casper J, Brewer D. Diagnostic value of stroboscopic examination in hoarse patients. J Voice ; 5 (3) Cited by: 8.Videostroboscopy: What You Need to Know What is videostroboscopy? Videostroboscopy is a non-invasive procedure used to examine the larynx.

It is considered the gold standard in laryngeal examination. You may be referred for this procedure if you are experiencing hoarseness, persistent laryngitis, a globus or.