{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T14:00:52Z","timestamp":1772978452092,"version":"3.50.1"},"reference-count":17,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2011,10,12]],"date-time":"2011-10-12T00:00:00Z","timestamp":1318377600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Laryngoscope"],"published-print":{"date-parts":[[2011,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives\/Hypothesis:<\/jats:title><jats:p>The aim of the study was to present the development of a miniature laser projection endoscope and to quantify vocal fold length and vibratory amplitude of the pediatric glottis using high\u2010speed digital imaging coupled with the laser endoscope.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design:<\/jats:title><jats:p>For this prospective study, absolute measurement of entire vocal fold length, membranous length of the vocal fold, and vibratory amplitude during phonation were obtained in one child (9 years old), one adult male (36 years old), and one adult female (20 years old) with the use of high\u2010speed digital imaging, coupled with a custom\u2010developed laser projection endoscope.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods:<\/jats:title><jats:p>The laser projection system consists of a module slip\u2010fit sleeve with two 3\u2010mW 650\u2010nm laser diodes in horizontal orientation separated by a distance of 5 mm. Calibration involved projecting the laser onto grid patterns at depths ranging from 6 to 10 cm and tilt angles of 15 to \u22125 degrees to obtain pixel\u2010to\u2010millimeter conversion templates. Measurements of vocal fold length and vibratory amplitude were extracted based on methods of image processing.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>The system demonstrated a method for estimating vocal fold length and vibratory amplitude with a single laser point with high measurement precision. First measurements of vocal fold length (6.8 mm) and vibratory amplitude (0.25 mm) during phonation in a pediatric participant are reported.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions:<\/jats:title><jats:p>The proposed laser projection system can be used to obtain absolute length and vibratory measurements of the pediatric glottis. The projection system can be used with stroboscopy or high\u2010speed digital imaging systems with a 70\u2010degree rigid endoscope.<\/jats:p><\/jats:sec>","DOI":"10.1002\/lary.22325","type":"journal-article","created":{"date-parts":[[2011,10,12]],"date-time":"2011-10-12T16:16:28Z","timestamp":1318436188000},"page":"2411-2417","source":"Crossref","is-referenced-by-count":28,"title":["Laser projection imaging for measurement of pediatric voice"],"prefix":"10.1002","volume":"121","author":[{"given":"Rita R.","family":"Patel","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kevin D.","family":"Donohue","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weston C.","family":"Johnson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanford M.","family":"Archer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,10,12]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/000348940611501012"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.mlg.0000150685.54893.e9"},{"key":"e_1_2_6_4_2","first-page":"22","volume-title":"Vocal Fold Physiology: Contemporary Research and Clinical Issues","author":"Hirano M","year":"1983"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/aja.1001510103"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1044\/jshr.2503.446"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1177\/000348940111000505"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1177\/000348949910800303"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200206000-00020"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1177\/000348940811700602"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1080\/14015430410024353"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1117\/1.3041164"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1177\/000348940811700603"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijporl.2005.03.004"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijporl.2004.08.021"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.moo.0000163451.98079.ba"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01213501"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1121\/1.397959"}],"container-title":["The Laryngoscope"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Flary.22325","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/lary.22325","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,8]],"date-time":"2023-10-08T20:42:51Z","timestamp":1696797771000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lary.22325"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,10,12]]},"references-count":17,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2011,11]]}},"alternative-id":["10.1002\/lary.22325"],"URL":"https:\/\/doi.org\/10.1002\/lary.22325","archive":["Portico"],"relation":{},"ISSN":["0023-852X","1531-4995"],"issn-type":[{"value":"0023-852X","type":"print"},{"value":"1531-4995","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,10,12]]}}}