Kulakov Iu V, Tagil'tsev A A, Korenbaum V I, Kirichenko S A
Med Tekh. 1995 Sep-Oct(5):20-3.
An acoustic device was proposed to detect bronchial obstruction by analysing a noise process in the laryngotracheal region at the forced expiration. Clinical trials were under way, which revealed persistent diagnosis signs of bronchial patency impairments associated with changes in the duration and shape of the envelope of a recorded acoustic signal, as well as deviations of its spectral characteristic.
