[Perfusion and ventilation pulmonary scintigraphy in the diagnosis of the operability of primary bronchial cancers].

Ventilation scintigraphy using Munsch's technique with Xenon 133 combined with perfusion scintigraphy using 99m Tc albumin particles in microspheres are of considerable interest in the preoperative evaluation of bronchogenic carcinoma. Basing themselves on 95 cases, the authors discuss the manner in which the tumor affects ventilation and perfusion. In the 70 cases of matching ventilatory and perfusion scans, scintigraphy alone is not sufficient to demonstrate the exact perfusion obstruction mechanism.