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  • Title: [Ultrasound diagnosis of the larynx with the aid of computerized sonography].
    Author: Grunert D, Stier B, Klingebiel T, Schöning M.
    Journal: Laryngorhinootologie; 1989 Apr; 68(4):236-8. PubMed ID: 2662986.
    Abstract:
    We report on new perspectives in diagnostic ultrasound of the larynx, a method that has become possible by the application of computed sonography. The examinations were performed by means of a computer sonography system (Acuson 128). For all investigations we used a 5 MHz linear transducer with a resolution corresponding to 10 MHz. The frame rate was between 20 Hz and 50 Hz and thus enabled good reproduction of dynamic processes. We could show that it is possible to visualize all significant structures of the larynx including the thyroid cartilage, the vocal ligament, the vocalis muscle, the arytenoid cartilage and the piriform fossa. With sufficient practice, good demonstration and hence assessment of the larynx can be already possible in infancy. We examined children and adults between 6 days and 35 years of age. - Masses in the laryngeal area are among the important indications for sonographic diagnosis: in infancy and childhood, these are mainly represented by laryngeal papillomatosis. In one of our patients suffering from massive laryngeal papillomatosis, laser surgery was first performed when he was 15 months of age. After a third removal procedure, interferon therapy was initiated. Sonographically it was easily possible to follow the course. Sonographic findings correlated well with laryngoscopic findings. Laryngoscopy could therefore be restricted to a minimum.
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