title: Estimation of nasal cross-sectional areas, using oral versus nasal pressure measurements.
abstract: This study examines calculations of model nasal cross-sectional area, using nasal versus oral pressure measurements. The results indicate that greater accuracy of nasal cross-sectional area estimation is achieved by using nasal rather than oral pressures. Nasal pressures measured in the anterior model nose more closely reflect nasopharyngeal pressures under a wide range of nasal constriction sizes and airflow rates.
authors.affiliation: Department of Pediatrics, University of Illinois College of Medicine, Chicago.
authors.forename: B E
authors.initials: BE
authors.lastname: Smith
authors.forename: T W
authors.initials: TW
authors.lastname: Guyette
mesh_terms: D000402:Airway Obstruction / Q000503:physiopathology*; D000403:Airway Resistance; D006801:Humans; D008953:Models, Anatomic; D009296:Nasal Cavity / Q000503:physiopathology*; D009305:Nasopharynx / Q000503:physiopathology; D012123:Pulmonary Ventilation; D012212:Rheology; D012815:Signal Processing, Computer-Assisted