Quantitative Evaluation of Video Laryngostroboscopy: Reliability of the Basic Parameters

Uloza, Virgilijus; Vegienė, Aurelija; Pribuišienė, Rūta; Šaferis, Viktoras

doi:10.1016/j.jvoice.2012.12.007

Cited by 20 publications

(23 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even in the case of a relatively symmetric, lateral oscillation behavior, there were pronounced asymmetries between the left and the right vocal fold in the vertical component. The data strongly suggest that asymmetries in the lateral and vertical direction appear independently from each other indicating that healthy phonation is not necessarily accompanied by symmetric oscillation patterns in all dimensions, as is commonly assumed . However, variations in holding the instrument affect the angle of entry for the laser projection.…”

Section: Discussionmentioning

confidence: 67%

“…The data strongly suggest that asymmetries in the lateral and vertical direction appear independently from each other indicating that healthy phonation is not necessarily accompanied by symmetric oscillation patterns in all dimensions, as is commonly assumed. [5][6][7][8][9]46 However, variations in holding the instrument affect the angle of entry for the laser projection. Further ex vivo studies have to investigate the influence of this hardly controllable angle on the calculated parameters to exclude a bias of the imaged vocal fold surface and hence distortion of the measured asymmetry.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the constant increase in number and relevance of communication‐based professions over the last decades, the complex three‐dimensional (3D) interaction of laryngeal structures, the airflow from the lungs and the generated acoustic signal is not yet fully understood . The general consensus is that a healthy voice is generated from periodic and symmetric vocal fold oscillations with glottal closure . It is assumed that the reduced voice quality of chronic hoarseness in the absence of structural or neurologic pathologies results from irregular and asymmetric vocal fold vibrations .…”

Section: Introductionmentioning

confidence: 99%

“…4 The general consensus is that a healthy voice is generated from periodic and symmetric vocal fold oscillations with glottal closure. [5][6][7][8][9] It is assumed that the reduced voice quality of chronic hoarseness in the absence of structural or neurologic pathologies 10,11 results from irregular and asymmetric vocal fold vibrations. [12][13][14] The clinical measurement of these irregular and asymmetric vocal fold vibrations is affected by the lack of absolute two-dimensional (2D) measurements and the lack of 3D imaging techniques that are essential to examine the 3D phonation process appropriately.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Clinical relevance of endoscopic three‐dimensional imaging for quantitative assessment of phonation

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Clinical relevance of endoscopic three‐dimensional imaging for quantitative assessment of phonation

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In terms of quantitative evaluation of the VLS using basic parameters this tool seems to be reliable in clinical settings with high sensitivity and specificity distinguishing healthy and pathological voice patients groups, with a low interclass correlation (ICC) value, ranging from 0.2 to 0.9 (232). Limitations of quantification of VLS variables originate from inherent restrictions of stroboscopic examination, which is basically an optical illusion made by the human eye, arising from the virtual reconstruction of adjacent phases of periodic oscillatory samples (200). Accordingly to these limits, a combination of VLS with other diagnostic procedures is advocated.…”

mentioning

confidence: 99%

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

Mannelli

Cecconi

Gallo

2016

Critical Reviews in Oncology/Hematology

View full text Add to dashboard Cite

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...

show abstract

Assessment of Clinical and Social Characteristics That Distinguish Presbylaryngis From Pathologic Presbyphonia in Elderly Individuals

Crawley

Dehom

Thiel

et al. 2018

JAMA Otolaryngol Head Neck Surg

View full text Add to dashboard Cite

Presbylaryngis is present in most ambulatory people older than 74 years. Some will endorse pathologic presbyphonia that has a negative effect on their voice and quality of life. Pathologic presbyphonia seems to be influenced by respiratory capacity and sex. Further study is required to isolate other social, physiologic, and general health characteristics that contribute to pathologic presbyphonia.

show abstract

Quantitative Evaluation of Video Laryngostroboscopy: Reliability of the Basic Parameters

Cited by 20 publications

References 25 publications

Clinical relevance of endoscopic three‐dimensional imaging for quantitative assessment of phonation

Clinical relevance of endoscopic three‐dimensional imaging for quantitative assessment of phonation

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

Assessment of Clinical and Social Characteristics That Distinguish Presbylaryngis From Pathologic Presbyphonia in Elderly Individuals

Contact Info

Product

Resources

About