نتایج جستجو برای: acoustic rhinometry

تعداد نتایج: 85938  

Journal: :The turkish journal of ear nose and throat 2021

Objective: Aim of the study is to evaluate subjective outcomes and objective postoperatively investigate correlations between these measurements. Material Methods: This prospective before after surgical was conducted with patients admitted symptomatic nasal septum deviation (NSD) who underwent Cottle’s septoplasty. Morphometric diameters cavity were measured using a multi-detector computed tomo...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2016
Ioannis A Tsolakis Divya Venkat Mark G Hans Aurelio Alonso J Martin Palomo

INTRODUCTION Upper airway measurement can be important for the diagnosis of breathing disorders. Acoustic reflection (AR) is an accepted tool for studying the airway. Our objective was to investigate the differences between cone-beam computed tomography (CBCT) and AR in calculating airway volumes and areas. METHODS Subjects with prescribed CBCT images as part of their records were also asked ...

2013
Jun Zhang

Acoustic rhinometry could numerically describe upper airway condition of air draft by drawing a graph plotting the distance from the nostril vs. the crosssectional area. Some decreases on the graph correspond to the typical anatomic structures of human nasal cavity. The 3-dimensional, computing fluid dynamic model of the same person was developed based on computed tomography scans. The veracity...

Journal: :Journal of applied physiology 2003
Ruslan L Tiniakov Olga P Tiniakova Robbie L McLeod John A Hey Donovan B Yeates

The ragweed- and histamine-induced decreases in nasal patency in cohorts of ragweed-sensitized and nonsensitized dogs were assessed. The volume of nasal airways (V(NA)) was assessed by acoustic rhinometry and resistance to airflow (R(NA)) by anterior rhinomanometry. Histamine delivered to the nasal passages of five dogs caused a rapid and prolonged increase in R(NA) (0.75 +/- 0.26 to 3.56 +/- 0...

2011
Kai Zhao Kara Blacker Yuehao Luo Bruce Bryant Jianbo Jiang

Adequate perception of nasal airflow (i.e., nasal patency) is an important consideration for patients with nasal sinus diseases. The perception of a lack of nasal patency becomes the primary symptom that drives these patients to seek medical treatment. However, clinical assessment of nasal patency remains a challenge because we lack objective measurements that correlate well with what patients ...

2017
M. Gamerra E. Cantone G. Sorrentino R. De Luca M.B. Russo E. De Corso F. Bossa A. De Vivo M. Iengo

The planning of experimental studies for evaluation of nasal airflow is particularly challenging given the difficulty in obtaining objective measurements in vivo. Although standard rhinomanometry and acoustic rhinometry are the most widely used diagnostic tools for evaluation of nasal airflow, they provide only a global measurement of nasal dynamics, without temporal or spatial details. Further...

Journal: :Brazilian journal of otorhinolaryngology 2010
João Batista de Paiva Belini Augusto Villalba Freire-Maia José Rino Neto Renata Cantisani Di Francesco Richard Louis Voegels

UNLABELLED The area above the nasal cavity plays a role in respiratory physiology. AIM To analyze, during a period of growth, a possible change in the minimum cross sectional area (MCA) and nasal volume of the anterior nasal cavity. MATERIALS AND METHODS We evaluated 29 children (14 boys and 15 girls) with a mean age of 7.81 years at first examination (M1) and 11.27 years in the second exam...

Journal: :Kulak burun bogaz ihtisas dergisi : KBB = Journal of ear, nose, and throat 2005
Timur Akçam Omer Karakoç Serdar Karahatay Sertaç Yetişer

OBJECTIVES We evaluated the effect of external nasal dilator strips and local decongestants used either alone or in combination on the nasal airway. SUBJECTS AND METHODS The study included 23 volunteer males (mean age 24.3 years; range 21 to 36 years) with no complaints of nasal obstruction. Nasal airway dimensions were measured by acoustic rhinometry after the following applications: (i) no ...

2013
Jaime Sanchez Carmen Vidal Dolores Hernandez Antonio Valero Jose Vicente Castello Antonio Pelaez Mario Alberto Garcia

Methods In this controlled multicentre phase IV study, HDM adult allergic patients were randomized to receive subcutaneous immunotherapy with a 10 IR/ml depot extract plus symptomatic treatment (group A) or only symptomatic treatment (group B) (2:1). Acoustic rhinometry after nasal provocation test (NPT) was selected to objectively assess the efficacy of this treatment by measuring the nasal vo...

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