Establishment of diagnostic method of upper airway obstruction site of Sleep-disturbed-breathing patients by acoustic analysis of snoring sounds and three-dimensional CT of upper airway

在本研究中，以下事实变得清晰起来。1)鼾声的声学性质随呼吸途径的改变有多种类型，但以口呼吸引起的1000 Hz附近声压显著升高为主的类型，预计双侧腭扁桃体是上呼吸道阻塞的主要部位之一。3)鼾声声学分析结合3D-CT图像分析可成为评价上呼吸道形态的一种有用且创伤较小的工具。

In the present study, the following fact became clear. 1) A changing pattern of acoustic property of snoring with the change of breathing route has plural types, but the type that sound pressure around 1000Hz increases remarkably by mouth breathing is expected that bilateral palatine tonsil is one of the major site of upper airway obstruction. 2) According to 3D-CT examination, even in awake, upper airway became narrow with oral breathing.3) Acoustic analysis of snoring sound combined with 3D-CT image analysis could become a useful and less invasive tool for evaluating the upper airway tract configuration.