Abstract
Because of several limitations associated with conventional [human] ventilation scintigraphy using radioactive gases, an alternative method appears desirable. An inhalation technique that employs heated, nebulized 99mTc-DTPA [diethylenetriaminepentaacetic acid] aerosol delivered from a compact, shielded unit is described. The technique was satisfactory and superior to ventilation scintigraphy using radioactive gases.