[The role of radio-inhalation scintigraphy in diagnosing tumors of the main bronchi].

The distribution of inhaled radio preparation has been studied in 7 cases of main bronchus neoplasms and 25 healthy subjects. Patterns of radio aerosols deposition have been followed versus regime of inhalation. Application of said procedure serves to improve the existing methods of radio inhalation scintigraphy as well as diagnostic procedures for tumors of main bronchi which X-ray examination and functional assessment of external respiration fail to detect.