Abstract
As a way of estimating the effect of therapy for acute laryngitis, objective evaluating method was made by the measurement of redness of laryngeal mucosa comparing with subjective symptom.
The laryngeal mucosa of 36 normal cases and 40 acute laryngitis cases before and after ultrasonic nebulizer therapy, were observed by electronic fiberscopy, recorded the findings using U-matic videorecorder and then, transferred the findings into personal computer on digital design through video bord. These pictures were analyzed brightness and signals of three primary colors; red, green and blue with software of picture management. After all, the redness was measured as the color difference signal with the difference between red signal and bright.
The disease types of acute laryngitis cases were classified by this objective evaluation comparing with normal cases. Moreover, the redness before and after ultrasonic nebulizer therapy were measured.
From the results, the effectiveness of ultrasonic nebulizer therapy was made more clear by the objective evaluation.
