Acoustic Rhinometry in Healthy Humans: Accuracy of Area Estimates and Ability to Quantify Certain Anatomic Structures in the Nasal Cavity

Abstract

The local minima on the AR area-distance curve beyond the nasal valve are caused by acoustic resonances in the nasal cavity, and do not correspond to any anatomic structure. The AR area overestimation beyond the paranasal sinus ostia is due to the interaction between the nasal cavity and the paranasal sinuses, rather than to sound loss into the sinuses. Acoustic rhinometry provides no quantitative information on ostium size or sinus volume in either non-decongested or decongested nasal cavities.

Changes in acoustic airway profiles and nasal airway resistance after Le Fort I osteotomy and functional rhinosurgery: A prospective study

“…The cross-sectional areas determined by acoustic rhinometry correlate well with computed tomography (CT) data particularly in the anterior nasal cavity. There is some evidence that posterior to the sinus ostia, acoustic rhinometry overestimates the cross-sectional area 5 .…”

Mechanisms explaining the role of viscosity and post-deglutitive pharyngeal residue on in vivo aroma release: A combined experimental and modeling study

“…Mean value/range of variation * Data source Reference Value from the literature Oral cavity volume cm 3 30-45 Rhinopharyngometry (Xue & Hao, 2006) 32.95 ± 6.10 Nasal cavity volume cm 3 4-14 Rhinopharyngometry (Cankurtaran, Celik, Coskun, Hizal, & Cakmak, 2007) 9.11 ± 0.71 Pharynx volume cm 3 20-45 Rhinopharyngometry (Xue & Hao, 2006) 29.65 ± 6.10 Residual product thickness in the pharynx lm 0.8-14.6 Degree of freedom of the model (case of the pure product layer hypothesis) 5 5lm…”

Age-related changes of nasal cavity and conchae volumes and volume fractions in children: a stereological study

“…Acoustic rhinometry, rhinomanometry and computed tomography (CT) may be used for assessing the morphometry of NC and a comparison of pre-and postoperative results in patients with nasal obstruction [4,21,22]. Terheyden et al [39] took CT as gold standard in measuring NC parameters, and many studies [5,38] applied CT in indicating nasal cross-sectional area, volume, and anatomy structures.…”