Quantification of videostrobolaryngoscopic findings--measurements of the normal glottal cycle

The Laryngoscope
P Woo

Abstract

Videostrobolaryngoscopic (VSL) images of vocal fold behavior in 32 male and 33 female normal speakers were analyzed by computer. Image analysis software enhanced the glottal image, allowing extraction of the glottal area. Frame-by-frame analysis produced 20 glottal area values for each glottal cycle. The glottal area waveform (GAW) plots these values. From the GAW, features such as peak glottal area, duration of opening and closing, and rates of vocal fold opening and closing were measured. Acoustic measures of sound pressure level (SPL) and fundamental frequency were used to compare changes in GAW with changes in loudness and pitch. Analysis of the data showed significant differences between the sexes in GAW, peak glottal area, closed period, closing slope, and size and incidence of the posterior glottal gap. Intensity and frequency changes significantly affected GAW. Intensity variations affected the steepness of the closing phase and the duration of the closed period. Frequency changes affected the open period and the relative duration of opening vs. closing. This study provides quantitative measures of the VSL image that supplement and corroborate perceptual observations. These measures provide normative data against which ...Continue Reading

References

Jan 1, 1978·Folia phoniatrica·S SaitoN Kokawa
Mar 1, 1975·Archives of Otolaryngology·S SaitoS Kitahara
Jan 1, 1975·Folia phoniatrica·M TanabeA Lambiase
Dec 1, 1973·The Laryngoscope·I F PadovanR J Darling
Jan 1, 1969·Acta Oto-laryngologica. Supplementum·S Fex
Jul 1, 1958·A.M.A. Archives of Otolaryngology·R TIMCKEP MOORE
Apr 1, 1959·A.M.A. Archives of Otolaryngology·R TIMCKEP MOORE
Sep 1, 1959·Practica Oto-rhino-laryngologica·P H DAMSTE, E HUIZINGA
Sep 1, 1961·The Annals of Otology, Rhinology, and Laryngology· von LEDEN

❮ Previous
Next ❯

Citations

Mar 16, 2005·Journal of Voice : Official Journal of the Voice Foundation·Marcia H MenezesHenrique Olival Costa
Oct 3, 2006·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Ofer AmirMichael Wolf
Nov 26, 2009·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Antonio SchindlerFrancesco Ottaviani
Sep 29, 2001·Journal of Voice : Official Journal of the Voice Foundation·I M Verdonck-de LeeuwH F Mahieu
Jun 10, 1998·Journal of Voice : Official Journal of the Voice Foundation·V P LimM J Campbell
Aug 26, 1998·The Laryngoscope·H K SchutteF Sram
Jan 12, 2010·The Journal of the Acoustical Society of America·Mihai MihaescuEphraim J Gutmark
May 20, 2014·Journal of Voice : Official Journal of the Voice Foundation·Liliana CastelblancoJacob Pieter Noordzij
May 20, 2014·Journal of Voice : Official Journal of the Voice Foundation·Akihito YamauchiTatsuya Yamasoba
Jun 10, 2010·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Khalid H MalkiThomas Murry
Jan 15, 2014·Journal of Voice : Official Journal of the Voice Foundation·Wenli ChenThomas Murry
Oct 8, 2013·Journal of Voice : Official Journal of the Voice Foundation·Peak Woo
Mar 16, 2013·Journal of Voice : Official Journal of the Voice Foundation·Takeshi IkumaAndrew J McWhorter
Jun 26, 2012·International Journal of Pediatric Otorhinolaryngology·Rasha M ShoeibYasser A Shehata
Aug 6, 2011·Journal of Voice : Official Journal of the Voice Foundation·Rachel E ArffaClark A Rosen
May 31, 2011·Journal of Voice : Official Journal of the Voice Foundation·Thomas L CarrollShirley Gherson
Jul 27, 2010·Journal of Voice : Official Journal of the Voice Foundation·Richard T KelleyDavid Brewer
Mar 5, 2015·Journal of Voice : Official Journal of the Voice Foundation·Akihito YamauchiTatsuya Yamasoba
Aug 30, 2008·Journal of Voice : Official Journal of the Voice Foundation·Meropi E HelidoniGeorge A Velegrakis
Dec 15, 2015·Journal of Voice : Official Journal of the Voice Foundation·Akihito YamauchiNiro Tayama
Oct 12, 2004·The Laryngoscope·Clark A RosenThomas Murry
Jun 5, 2007·The Laryngoscope·Arno OlthoffEberhard Kruse
Jan 2, 2009·The Laryngoscope·Sid KhoslaEphraim Gutmark
May 24, 2005·Journal of Voice : Official Journal of the Voice Foundation·Yuling YanDiane Bless
Dec 6, 2005·Journal of Voice : Official Journal of the Voice Foundation·Ofer AmirMichael Wolf
Jan 9, 2004·Acta Oto-laryngologica·Dong-Young KimMee-Young Sung
Jul 8, 2015·Journal of Voice : Official Journal of the Voice Foundation·Carly J Hosbach-CannonRaymond H Colton
May 25, 2015·Journal of Voice : Official Journal of the Voice Foundation·Akihito YamauchiTatsuya Yamasoba
May 9, 2015·Journal of Voice : Official Journal of the Voice Foundation·Hisayuki YokonishiNiro Tayama
Sep 18, 2014·Journal of Voice : Official Journal of the Voice Foundation·Akihito YamauchiTatsuya Yamasoba
Nov 8, 2006·Annales d'oto-laryngologie et de chirurgie cervico faciale : bulletin de la Société d'oto-laryngologie des hôpitaux de Paris·A M'hiri ChaabouniF Ben Slimane
Oct 30, 2016·Journal of Voice : Official Journal of the Voice Foundation·Monike TsutsumiArlindo Neto Montagnoli
Apr 11, 2017·Journal of Voice : Official Journal of the Voice Foundation·Dionysios TafiadisNausica Ziavra
Apr 6, 2004·Otolaryngologic Clinics of North America·Alison Behrman
Dec 4, 2012·Otolaryngologia polska. The Polish otolaryngology·Eugeniusz CzeciorPaweł Sowa
Feb 28, 2009·The Annals of Otology, Rhinology, and Laryngology·Shanmugam MurugappanEphraim Gutmark
May 24, 2000·The Annals of Otology, Rhinology, and Laryngology·J P Noordzij, P Woo
Apr 11, 2007·The Annals of Otology, Rhinology, and Laryngology·Jan G SvecHarm K Schutte
Oct 26, 2018·Clinical Otolaryngology : Official Journal of ENT-UK ; Official Journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·Ewelina M Sielska-BadurekEwa Osuch-Wójcikiewicz
Oct 30, 2013·Journal of Speech, Language, and Hearing Research : JSLHR·Takeshi IkumaAndrew J McWhorter
Jan 24, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·Akihito YamauchiTatsuya Yamasoba

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.