Abstract
With evaluation of operation methods for laryngeal cancer in considering the preservation of the function, it is becoming important to decide whether radiotherapy should be done or an operation should be done. Therefore, it is necessary to decide precise localization and infiltration of laryngeal cancer. We improved a standard approach TV monitoring apparatus for the diagnosis of the digestive tract to get distinct radiographs. In using this technique we tried to expand the range of diagnosis by laryngography.
