Acoustic determinants of respiratory system properties
Acoustic determinants of respiratory system properties
复制标题
呼吸系统特性的声学决定因素
DOI：
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发表时间：
2006
影响因子：
3.8
通讯作者：
J. Fredberg
中科院分区：
文献类型：
--
作者：
J. Fredberg
机械和几何性质的上部和中央气道之间的口和隆突可以推断非侵入性的个体受试者从高频声反射数据测量的口。用于推断此信息的理论逆散射形式主义中隐含的理想化导致数据采集中的各种限制和几种形式的错误。特别地，气道壁动力学、高阶模式的传播和有限的测量带宽联合收割机结合起来限制了空间分辨率。
Mechanical and geometrical properties of the upper and central airways between the mouth and the carina can be inferred noninvasively in individual subjects from high frequency acoustic reflection data measured at the mouth. Idealizations implicit in the theoretical inverse-scattering formalism used to infer this information lead to a variety of limitations in data acquisition, and several forms of errors. In particular, airway wall dynamics, propagation of higher order modes, and limited measurement bandwidth combine to limit spatial resolution.