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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Acoustic rhinometry ： ウィキペディア英語版 Acoustic rhinometry Acoustic Rhinometry is a diagnostic measurement of the nose and the nasal cavity through acoustic reflections. It can be used to measure nasal anatomical landmarks, nasal septum deviation, and nasal airway changes in response to allergen provocation tests. This test has been developed from methods that were used to measure lower respiratory tract resistance. == Method == The test is carried out by generating an acoustic pulse from a speaker or spark source and this sound pulse is transmitted to the nose along a tube. This sound pulse is reflected back to a microphone and this reflection is generated according to the changes in the local acoustic impedance related to cross-sectional area of the nasal cavity. The microphone transmits the sound signal to an amplifier and to a PC which processes it an area distance graph. These measurements correlate well with area measurements done by CT scans, nasal airway resistance measured by rhinomanometry, but they are sometimes unreliable in the posterior area and when the nasal area is congested. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Acoustic rhinometry」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.