Roithmann R, Cole P, Chapnik J, Shpirer I, Hoffstein V, Zamel N
Department of Otolaryngology, Mount Sinai Hospital, University of Toronto, Ontario, Canada.
Laryngoscope. 1995 Mar;105(3 Pt 1):275-81. doi: 10.1288/00005537-199503000-00010.
Acoustic rhinometry (AR) is a recently developed objective technique for assessment of geometry of the nasal cavity. The technique is based on the analysis of sound waves reflected from the nasal cavities. It measures cross-sectional areas and nasal volume (NV). To obtain dependable assessments of nasal resistance by rhinomanometry or cross-sectional area measurements by AR, it is essential that the structural relations of the compliant vestibular region remain undisturbed by the measuring apparatus. The use of nozzles in making these measurements carries a great risk of direct distortion of the nasal valve. We used a nasal adapter that does not invade the nasal cavity and a chin support that stabilizes the head. In 51 healthy nasal cavities, the average minimum cross-sectional area (MCA) was 0.62 cm2 at 2.35 cm from the nostril and 0.67 cm2 at 2 cm from the nostril, respectively, before and after topical decongestion of the nasal mucosa. The MCA and NV findings in this group were significantly higher than MCA and NV (P < 0.001) in people with structural or mucosal abnormalities before mucosal decongestion. After mucosal decongestion, the MCA and NV were significantly higher in healthy nasal cavities than in nasal cavities with structural abnormalities (P < 0.001) but were not higher than nasal cavities with mucosal abnormalities (MCA, P = 0.05; NV, P = 0.06). A nozzle was applied in 20 healthy nasal cavities after mucosal decongestion, and a significantly higher MCA was found compared to measurements made with the nasal adapter (P = 0.02). We conclude that the nasal adapter, which does not invade the nasal cavities, avoids the distortion of the nasal valve and gives more accurate results.
鼻声反射测量法（AR）是一种最近开发的用于评估鼻腔几何形状的客观技术。该技术基于对从鼻腔反射的声波的分析。它测量鼻腔的横截面积和鼻腔容积（NV）。为了通过鼻阻力计获得可靠的鼻阻力评估或通过AR测量横截面积，至关重要的是，顺应性前庭区域的结构关系不会受到测量仪器的干扰。在进行这些测量时使用喷嘴会带来鼻瓣膜直接变形的巨大风险。我们使用了一种不侵入鼻腔的鼻适配器和一个稳定头部的下巴支撑装置。在51个健康鼻腔中，在鼻腔黏膜局部减充血前后，距鼻孔2.35 cm处的平均最小横截面积（MCA）分别为0.62 cm²，距鼻孔2 cm处为0.67 cm²。该组的MCA和NV结果显著高于黏膜减充血前有结构或黏膜异常的人的MCA和NV（P < 0.001）。黏膜减充血后，健康鼻腔的MCA和NV显著高于有结构异常的鼻腔（P < 0.001），但不高于有黏膜异常的鼻腔（MCA，P = 0.05；NV，P = 0.06）。在20个健康鼻腔黏膜减充血后使用了喷嘴，与使用鼻适配器进行的测量相比，发现MCA显著更高（P = 0.02）。我们得出结论，不侵入鼻腔的鼻适配器可避免鼻瓣膜变形并给出更准确的结果。
