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Wyszukujesz frazę "mucosal wave" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Mucosal wave measurements in the diagnosis of functional dysphonia
Autorzy:
Szkiełkowska, Agata
Krasnodębska, Paulina
Miaśkiewicz, Beata
Włodarczyk, Elżbieta
Domeracka-Kolodziej, Anna
Skarżyński, Henryk
Powiązania:
https://bibliotekanauki.pl/articles/1397747.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
electroglottography
functional dysphonia
mucosal wave
open quotient
videostroboscopy
Opis:
ntroduction: The publication describes the characteristics of the glottis in FDs objectified by OQ, measured with VSK and EGG. Aim: The aim of the study was to objectify glottal function in different types of FDs. The scope was to use open quotients gained from various mucosal wave imaging techniques for differential diagnosis of FDs. Material and Method: The study included 204 individuals. In the study, each patient underwent otolaryngological and phoniatric examination. LVS, EGG and VSK were conducted, their results were recorded and stored using an EndoSTROB-DX- -Xion GmbH (Berlin) device with DIVAS software. Results: All patients with FDs had abnormalities in LVS. A statistical analysis showed differences in LVS characteristics according to the type of FD. The mean value of OQVSK was 0.521 in the control group and 0.565 in the study group (P < 0.05). Significant differences were found between patients with hypofunctional – 0.584 and hyperfunctional dysphonia – 0.55. The QOQEGG mean value in patients with FDs was 0.581 and in the control group 0.549 (P < 0.01). There were statistically significant differences between groups of patients with hyper- and hypofunctional dysphonias. Medians amounted to 0.574 and 0.604, respectively. Authors observed different relations of OQ with the type of FD. They decided to introduce a new parameter, illustrating the proportion of QOQEGG/OQVSK. Conclusions: Videostrobokymographic and electroglottographic open quotients differentiate euphony from dysphony. The value of OQVSK and QOQEGG and their proportion varies depending on different types of functional dysphonias. The OQVSK and QOQEGG should be included in the diagnostic algorithm of voice.
Źródło:
Polish Journal of Otolaryngology; 2019, 73, 6; 1-7
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A One-Mass Physical Model of the Vocal Folds with Seesaw-Like Oscillations
Autorzy:
Qureshi, T. M.
Syed, K. S.
Powiązania:
https://bibliotekanauki.pl/articles/177478.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
body-cover model
seesaw-like oscillation
glottal flow
vocal folds
spring-mass system
mucosal wave propagation
Opis:
A low-dimensional physical model of small-amplitude oscillations of the vocal folds is proposed here. The model is a simplified version of the body-cover one in which mucosal surface wave propagation has been approximated by the seesaw-like oscillation of the vocal fold about its fulcrum point whose position is adjustable in both the horizontal and vertical directions. This approach works for 180 degree phase difference between the glottal entry and exit displacements. The fulcrum point position has a significant role in determining the shape of the glottal flow. The vertical position of the fulcrum point determines the amplitude of the glottal exit displacement, while its horizontal position governs the shape and amplitude of the glottal flow. An increment in its horizontal position leads to an increase in the amplitude of the glottal flow and the time period of the opening and closing phases, as well as a decrease in the time period of the closed phase. The proposed model is validated by comparing its results with the low-dimensional mucosal surface wave propagation model.
Źródło:
Archives of Acoustics; 2011, 36, 1; 15-27
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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