Three-dimensional Imaging of High-resolution Computer Tomography of Singers' Larynges—A Pilot Study

Vorik, Alexandra; Unteregger, Fabian; Zwicky, Salome; Schiwowa, Julia; Potthast, Silke; Storck, Claudio

doi:10.1016/j.jvoice.2016.03.011

Cited by 15 publications

(20 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…MRI has a lower resolution, and CT scanner necessitates radiation exposure and post-acquisition software–based interpretation 16,17,18,19,20. Both these imaging techniques are costly and do not allow for the examination of patients under physiological conditions.…”

Section: Discussionmentioning

confidence: 99%

The larynx ruler to measure height and profile of vocal folds: a proof of concept

Desuter¹,

Mertens²,

Delchambre³

et al. 2017

MDER

View full text Add to dashboard Cite

IntroductionGlottic leakage during phonation is a direct consequence of unilateral vocal fold (VF) paralysis. This air leakage can be in the horizontal plane and in the vertical plane. Presently, there is no easily applicable medical device allowing noninvasive, office-based measurement of the relative vertical position of the VFs. The larynx ruler (LR) is a laser-based measuring device that could meet the previously stated need, using a flexible endoscope. This study represents a proof of concept regarding the use of the LR in assessing VF relative positions in the vertical plane.Materials and methodsOne fresh male human cadaver larynx, free of neurologic and anatomic disease, was explored with the LR system through the operative channel of a flexible gastroenterology video-endoscope. The tip of the video-endoscope was located in the laryngeal vestibule. The right crico-arytenoid joint was posteriorly disarticulated. Tilting of the VF was obtained by pulling or pushing the arytenoid cartilage with a mosquito forceps fixed to the stump of the previously sectioned superior tip of the posterior crico-arytenoid muscle allowing anterior and posterior tilting of the arytenoid cartilage in order to induce an elevation or a depression of the VF process. Ten “push” and ten “pull” sessions were performed. The distance from the tip of the video-endoscope to each illuminated pixel of the laser beam was recorded. The level difference between the left and right VFs was measured for each recording.ResultsData provided by the LR were consistently in accordance with the movements applied on the VFs. The accuracy of 0.2 mm of the LR is compatible with the envisioned applications for the human larynx.ConclusionThe LR system represents a feasible technique to evaluate respective vertical position of VFs in the human larynx. Technical limitations were identified that will require improvements before experimental use on human beings.

show abstract

Section: Discussionmentioning

confidence: 99%

The larynx ruler to measure height and profile of vocal folds: a proof of concept

Desuter¹,

Mertens²,

Delchambre³

et al. 2017

MDER

View full text Add to dashboard Cite

show abstract

“…In their study, a significant relationship between elongation and CTJ type could be demonstrated, and a correlation between CTJ type and voice pitch elevation was observed. Later, in a pilot study on professional singers, Vorik et al showed the same relationship between CTJ type and elongation of the vocal fold, namely that type A CTJs are related to greater elongation and vocal pitch elevation.…”

Section: Introductionmentioning

confidence: 92%

“…The level of the vocal pitch can be influenced by the shape of the resonance space and the relative height of the larynx within the pharynx, as well as by specific vocal fold properties and adjustments that influence the frequency of vibration, such as stiffening, relaxation, and elongation. Our previous studies have shown that vocal pitch is first increased by elongation of the vocal fold through the cricothyroid muscle (CTM), which causes a backward tilting of the cricoid; and then by stretching of the vocal fold through the lateral cricoarytenoid muscle (LCAM), which leads to inferior displacement of the vocal process of the arytenoid cartilage …”

Section: Introductionmentioning

confidence: 99%

“…The laryngeal muscles (CTM, thyroarytenoid muscle [TAM], lateral cricoarytenoid muscle [LCAM], and posterior cricoarytenoid muscle [PCAM]) change the position of the arytenoid cartilage and the vocal process. The extent of elongation of the vocal fold is not only dependent on the contraction of muscles but may also be influenced by the type of CTJ . This mechanism seems key.…”

Section: Introductionmentioning

confidence: 99%

“…In order to elongate and stretch the vocal folds, the laryngeal muscles (TAM, LCAM, CTM, and PCAM) change the position of the arytenoid cartilage and the vocal process. Nevertheless, the extent of elongation of the vocal fold is not only dependent on the contraction of muscles but also on the type of CTJ …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cricothyroid joint type as predictor for vocal fold elongation in professional singers

Storck

Unteregger

2017

The Laryngoscope

Self Cite

View full text Add to dashboard Cite

show abstract

Three-dimensional imaging of vocalizing larynx by ultra-high-resolution computed tomography

Miyamoto

Ohara

Arai

et al. 2019

Eur Arch Otorhinolaryngol

View full text Add to dashboard Cite

Three-dimensional Imaging of High-resolution Computer Tomography of Singers' Larynges—A Pilot Study

Cited by 15 publications

References 22 publications

The larynx ruler to measure height and profile of vocal folds: a proof of concept

The larynx ruler to measure height and profile of vocal folds: a proof of concept

Cricothyroid joint type as predictor for vocal fold elongation in professional singers

Three-dimensional imaging of vocalizing larynx by ultra-high-resolution computed tomography

Contact Info

Product

Resources

About