title: [Pulmonary scintigraphy using the inhalation of monodispersed radioactive aerosols. Preliminary report].
abstract: This article describes a method for inhalatory lung scintigraphy (ILS) by the use of radioactive monodisperse aerosols, with particles smaller than 2 microns. We discuss the findings in normal subjects, in patients with pulmonary embolism (PE) or/and obstructive pulmonary disease (OPD), and in individuals with severe pulmonary hypertension. This procedure has several advantages over the use of radioactive gases, such as 133Xe and 81Krm: lower cost, easier to perform, several scintigraphic projections in one study, acquisition of perfusion and inhalatory images in a single session, and inhalatory and perfusion images with identical spatial resolution and similar data density. It is concluded that ILS with radioactive monodisperse aerosols is a useful method for the study of OPD and in conjunction with perfusion lung scintigraphy is helpful in the diagnosis of PE.
mesh_terms: D000336:Aerosols; D003937:Diagnosis, Differential; D006801:Humans; D006976:Hypertension, Pulmonary / Q000000981:diagnostic imaging*; D008168:Lung / Q000000981:diagnostic imaging*; D008173:Lung Diseases, Obstructive / Q000000981:diagnostic imaging*; D004369:Pentetic Acid / Q000008:administration & dosage; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013667:Technetium / Q000008:administration & dosage; D016284:Technetium Tc 99m Pentetate
chemical_list: D000336:Aerosols; D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate
vernacular_title: La centelleografía pulmonar mediante la inhalación de aerosoles radiactivos monodispersos. Informe preliminar.