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

Semmler, Marion; Döllinger, Michael; Patel, Rita R.; Ziethe, Anke; Schützenberger, Anne

doi:10.1002/lary.27165

Cited by 18 publications

(28 citation statements)

References 45 publications

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“…The measured amplitudes and velocities may be compared with those obtained for human vocal folds in in vivo (∼1-2 mm and ∼2 m/sec, respectively) [31] and excised (∼2 mm and ∼1 m/s, respectively) [29]. However, the human excised larynx exhibited an induced reduced amplitude, presumably significantly affecting the normal kinematics of the contralateral vocal fold that, while mechanically normal, came into contact with a vocal fold of atypical stiffness.…”

Section: Stroboscopic Oct-vs Modementioning

confidence: 98%

“…Ultrasound imaging has been used to trace tissue particles in motion pictures along the coronal plane with good penetration, but it suffered from poor spatial resolution [26,27]. Optical imaging based on structured illumination has been used to measure vocal fold kinematics in both excised and in vivo experimental configurations [28][29][30][31]. Whereas this method allowed for fast imaging rates (∼4000 fps), it suffered from poor spatial resolution (10 points per line) and significant computational overhead for vocal fold surface reconstruction.…”

Section: Introductionmentioning

confidence: 99%

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Synchronized, concurrent optical coherence tomography and videostroboscopy for monitoring vocal fold morphology and kinematics

Maguluri

Mehta

Kobler

et al. 2019

Biomed. Opt. Express

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Voice disorders affect a large number of adults in the United States, and their clinical evaluation heavily relies on laryngeal videostroboscopy, which captures the mediallateral and anterior-posterior motion of the vocal folds using stroboscopic sampling. However, videostroboscopy does not provide direct visualization of the superior-inferior movement of the vocal folds, which yields important clinical insight. In this paper, we present a novel technology that complements videostroboscopic findings by adding the ability to image the coronal plane and visualize the superior-inferior movement of the vocal folds. The technology is based on optical coherence tomography, which is combined with videostroboscopy within the same endoscopic probe to provide spatially and temporally co-registered images of the mucosal wave motion, as well as vocal folds subsurface morphology. We demonstrate the capability of the rigid endoscopic probe, in a benchtop setting, to characterize the complex movement and subsurface structure of the aerodynamically driven excised larynx models within the 50 to 200 Hz phonation range. Our preliminary results encourage future development of this technology with the goal of its use for in vivo laryngeal imaging.

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Section: Stroboscopic Oct-vs Modementioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Synchronized, concurrent optical coherence tomography and videostroboscopy for monitoring vocal fold morphology and kinematics

Maguluri

Mehta

Kobler

et al. 2019

Biomed. Opt. Express

View full text Add to dashboard Cite

show abstract

“…Recently, laryngeal image processing of vocal folds motion have been used to visualize the 3D superior vocal fold vibrations from laryngeal recordings [23,24,[167][168][169]. The authors proved that healthy phonation does not depend on symmetric oscillation patterns since great asymmetric vertical dynamics were observed.…”

Section: Voice Research and Clinical Applicationsmentioning

confidence: 99%

“…Current laryngeal image modalities include Laryngeal VS, Videokymography (VKG), High-Speed Digital Kymograghy (DKG) and Laryngeal HSV. However, there are new modalities that emerge for analyzing the vocal folds dynamics [22] and also devices for 3D visualization of the vibration of vocal folds superior margins [23][24][25][26]. This paper is focused on two laryngeal image modalities: VS and HSV.…”

Section: Laryngeal Image Modalitiesmentioning

confidence: 99%

Laryngeal Image Processing of Vocal Folds Motion

et al. 2020

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This review provides a comprehensive compilation, from a digital image processing point of view of the most important techniques currently developed to characterize and quantify the vibration behaviour of the vocal folds, along with a detailed description of the laryngeal image modalities currently used in the clinic. The review presents an overview of the most significant glottal-gap segmentation and facilitative playbacks techniques used in the literature for the mentioned purpose, and shows the drawbacks and challenges that still remain unsolved to develop robust vocal folds vibration function analysis tools based on digital image processing.

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“…They oscillate self-sustained with a high frequency and small amplitude. A study on ten individuals showed that the average fundamental frequency for males is around 174 Hz and for females around 278 Hz, and the lateral amplitudes are around 0.93 mm and 0.80 mm [19].…”

Section: Anatomical Structure Of the Vocal Foldsmentioning

confidence: 99%

Imaging the Vocal Folds: A Feasibility Study on Strain Imaging and Elastography of Porcine Vocal Folds

et al. 2019

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Vocal folds are an essential part of human voice production. The biomechanical properties are a good indicator for pathological changes. In particular, as an oscillation system, changes in the biomechanical properties have an impact on the vibration behavior. Subsequently, those changes could lead to voice-related disturbances. However, no existing examination combines biomechanical properties and spatial imaging. Therefore, we propose an image registration-based approach, using ultrasound in order to gain this information synchronously. We used a quasi-static load to compress the tissue and measured the displacement by image registration. The strain distribution was directly calculated from the displacement field, whereas the elastic properties were estimated by a finite element model. In order to show the feasibility and reliability of the algorithm, we tested it on gelatin phantoms. Further, by examining ex vivo porcine vocal folds, we were able to show the practicability of the approach. We displayed the strain distribution in the tissue and the elastic properties of the vocal folds. The results were superimposed on the corresponding ultrasound images. The findings are promising and show the feasibility of the suggested approach. Possible applications are in improved diagnosis of voice disorders, by measuring the biomechanical properties of the vocal folds with ultrasound. The transducer will be placed on the vocal folds of the anesthetized patient, and the elastic properties will be measured. Further, the understanding of the vocal folds’ biomechanics and the voice forming process could benefit from it.

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

Abstract: 4. Laryngoscope, 128:2367-2374, 2018.

Cited by 18 publications

References 45 publications

Synchronized, concurrent optical coherence tomography and videostroboscopy for monitoring vocal fold morphology and kinematics

Synchronized, concurrent optical coherence tomography and videostroboscopy for monitoring vocal fold morphology and kinematics

Laryngeal Image Processing of Vocal Folds Motion

Imaging the Vocal Folds: A Feasibility Study on Strain Imaging and Elastography of Porcine Vocal Folds

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