Laryngeal Vibrations: Measurements of the Glottic Wave: Part I. The Normal Vibratory Cycle

Timcke, R; Leden, Hans von; Moore, Paul

doi:10.1001/archotol.1958.00730020005001

Cited by 193 publications

(90 citation statements)

References 6 publications

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“…A well-known drawback of video-laryngo-stroboscopy (VLS) is the reliance on quasi-periodic voice signals (93) when producing a real-time slow-motion stroboscopic effect. Objective measurements of the vocal fold vibration pattern date back to the initial high-speed cinematography recordings of vocal fold vibration from the works of Timcke, von Leden, and Moore (94)(95)(96)(97). Nowadays, because of the multiple factors related to the complex vocal fold vibratory system the actual clinical application of objective measurements has not yet been achieved.…”

Section: Stroboscopymentioning

confidence: 99%

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Mannelli

Cecconi

Gallo

2016

Critical Reviews in Oncology/Hematology

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Abstract.Background: Multi-step cancerogenesis guides laryngeal cancer onset and it includes a wide variety of pre-cancerous lesions that are macroscopically challenging to identify and distinguish from initial cancerous foci. Since the treatment of laryngeal cancer and its precursor lesions has a great impact on important laryngeal basic functions, early detection and preoperative assessment are important for a curative and function-preserving therapy. Nowadays, despite the high number of more advanced diagnostic techniques and methods, unfortunately, it is not uncommon for different clinicians to use different nomenclature or to identify different stage for the same laryngeal lesion. From these observations, it is obvious that an instrument offering the possibility to detect precancerous lesions, early cancerous lesions, and satellite foci or second primaries would be the key to improving management and outcome in laryngeal patients. Object. Different modalities of diagnostic techniques of laryngeal lesions exist. Rather than difference between benign and obvious malignant diseases, more difficult is to detect the presence of precancerous epithelial alterations. Not all tests achieve the same diagnostic accuracy, hence this meta-analysis of literature aimed to synthesize the validity of each single diagnostic technique in identifying and staging laryngeal disease. Methods: A systematic review of literature was led searching for articles mentioning the following terms including their various combinations to maximize the yield: larynx, laryngeal precancerous lesions, laryngeal cancer, white light (WL) endoscopy, stroboscopy, contact endoscopy (CE), autofluorescence (AF), ultrasound (US), narrow band imaging (NBI), computed axial tomography (CAT), magnetic resonance imaging (MRI), positron emission tomography (PET), CAT/PET. Then, a quantitative analysis was carried on for paper published after 2005 onward, reporting a minumun series of 10 patients each study, declaring sensitivity and specificity of each diagnostic system. Results: The search identified 7215 publications, of which 3616 published after 2005, with a final results of a total of 214 articles stratified and included by our selection criteria. 42 out of 214 articles were selected for quantitative synthesis. 25 out of 41 studies had a quality score of ≥ 6 (good), 16 presented a score between 4 and 5 (fair). While objections can be raised about the pooling of different diagnostic procedures under the same group and the high level of heterogeneity in the meta-analyses, the inclusion of over 4400 laryngeal lesions makes the results fairly robust. Conclusions: A comprehensive overview of the most recent advances in laryngeal imaging technology combined with all of the information needed to interpret findings and successfully manage patients with voice disorders can be found herein. With these data, clinicians can riskstratify patients and select proper examination modalities in order to provide appropriate care. Moreover, study limitations, together with p...

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Section: Stroboscopymentioning

confidence: 99%

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Mannelli

Cecconi

Gallo

2016

Critical Reviews in Oncology/Hematology

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“…Most studies were conducted from a superior view with a laryngostroboscope [34][35][36] or by using ultrahigh-speed motion pictures [37,38]. In particular, laryngostroboscopy is frequently used to evaluate vocal fold vibration both in basic research and clinically, because it is easily performed and may be used to obtain large quantities of information.…”

Section: Lubrication Of the Larynx And Vocal Fold Vibrationmentioning

confidence: 99%

Lubrication Mechanism of the Larynx during Phonation: An Experiment in Excised Canine Larynges

Nakagawa¹,

Fukuda²,

Kawaida³

et al. 1998

Folia Phoniatr Logop

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To evaluate how the viscosity of the laryngeal mucus influences vocal fold vibration, two fluids of differing viscosity were applied separately to excised canine larynges and experimental phonation was induced. Vibration of the vocal folds was measured by use of a laryngostroboscope and an X-ray stroboscope. With the high viscosity fluid, the amplitude of vibration of the free edge and the peak glottal area was decreased while the open quotient was increased. Because the viscosity of this fluid affected the wave motion of the vocal fold mucosa, changes in viscosity of the mucus may be involved in causing such disorders as hoarseness, in the absence of apparent changes in the vocal folds themselves.

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“…H a-ha-ha" . Acoustic analysis of this vocalization reveals four im portant features: (1) it is composed of a series of short sound pulses: (2) each pulse is initiated In an aspirated " li" Ivpe sound: (3) one of several vowel sounds is uttered: and (4) the vowel is term inated abruptly. This acoustic sequence is produced by a series of conti nuous and very rapid larvngeal adjustem ents.…”

mentioning

confidence: 99%

Dynamic Variations of the Vibratory Pattern in the Normal Larynx

Moore¹,

H²

1958

Folia Phoniatr Logop

106

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Laryngeal Vibrations: Measurements of the Glottic Wave: Part I. The Normal Vibratory Cycle

Cited by 193 publications

References 6 publications

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis.

Lubrication Mechanism of the Larynx during Phonation: An Experiment in Excised Canine Larynges

Dynamic Variations of the Vibratory Pattern in the Normal Larynx

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