Dynamic B-Mode Ultrasound Imaging of Vocal Fold Vibration During Phonation

Tsai, Chen-Gia; Chen, Jeng Horng; Shau, Yio-Wha; Hsiao, Tzu‐Yu

doi:10.1016/j.ultrasmedbio.2009.06.002

Cited by 35 publications

(28 citation statements)

References 25 publications

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“…Such motion pictures may provide valuable data for analyzing vocal fold vibration especially in the body. This unique method has been described for the first time by Tsai et al (170) who first attempted to represent a dynamic B-mode image of vocal fold vibration. In conclusion, endosonography of the larynx produces horizontal slice images comparable with computed axial tomography (CAT) or magnetic resonance imaging (MRI) scans but with a higher resolution (170).…”

Section: Ultrasoundmentioning

confidence: 99%

“…This unique method has been described for the first time by Tsai et al (170) who first attempted to represent a dynamic B-mode image of vocal fold vibration. In conclusion, endosonography of the larynx produces horizontal slice images comparable with computed axial tomography (CAT) or magnetic resonance imaging (MRI) scans but with a higher resolution (170). During the imaging process, it is essential to position the probe as centrally as possible, avoiding contact with the laryngeal wall, it allows to directly measure the antero-posterior and medio-lateral diameters of the laryngeal neoplasm.…”

Section: Ultrasoundmentioning

confidence: 99%

See 1 more Smart Citation

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: Ultrasoundmentioning

confidence: 99%

Section: Ultrasoundmentioning

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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“…Therefore, we can talk about a brightness mode in which the intensity of the bright dots corresponding to the echoes are represented depending on their brightness level. This has been used to evaluate steatotic liver tissues [43], intravascular tissues [44] [45] and vocal cords [46] .…”

Section: Mode a (Amplitude)mentioning

confidence: 99%

Application of ultrasound in medicine part ii: the ultrasonic transducer and its associated electronics

2013

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This paper introduces the reader to a review and analysis of various ultrasound (us) applications in the medical field. First, the transducer is shown, along with a diagram of the basic electronics that it uses to generate and receive signals that allow the reconstruction of images, for medical purposes. Also, us practical uses in medical therapy is shown. This subject is addressed by combining the physical principles involved in the us application, with the implemented technology and the modes of operation for non-invasive studies of pathologies related to brain, heart, and eyes such as injuries, tumors and hematomas. The methodology used in this article also suggests an analysis method for the us scientific and technological research principles combined for their implementation in medical applications.Keywords: ultrasonic transducer, piezoelectric, transmitter, receiver, converter, modes ResumenEn este trabajo se presenta al lector una revisión y análisis de diferentes aplicaciones del ultrasonido (us) en el campo médico. Inicialmente se muestra el transductor y un esquema de su electrónica básica asociada usada para emitir y adquirir las señales que permiten la reconstrucción de las imágenes, para efectos médicos y también la aplicación del us para terapia; la temática se aborda conjugando los principios físicos asociados a la aplicación del us con la tecnología implementada y sus modos de operación, para estudios no invasivos de patologías relacionadas con el cerebro, el corazón, los ojos y lesiones tales como tumores y hematomas. La metodología implementada en este artículo sugiere también un método de análisis de los principios científicos del us e investigación tecnológica asociadas para su concreción en las aplicaciones médicas.

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“…The mechanical properties of the vocal folds are critical to pitch control, and several ultrasound techniques have been applied to identify them. Both Doppler ultrasound [37,38] and ultrasound B-mode [39] imaging can be applied to evaluate the vibratory behavior of the vocal folds for indirectly estimating the elasticity. Direct measurement of the acoustic parameters of the vocal folds is another approach.…”

Section: Application Of Nakagami Imaging To Vocal-fold Characterizationmentioning

confidence: 99%

Ultrasound imaging of the larynx and vocal folds

Tsui

Wan

Chen

2012

Current Opinion in Otolaryngology & Head and Neck Surgery

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Dynamic B-Mode Ultrasound Imaging of Vocal Fold Vibration During Phonation

Cited by 35 publications

References 25 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.

Application of ultrasound in medicine part ii: the ultrasonic transducer and its associated electronics

Ultrasound imaging of the larynx and vocal folds

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