[Feasibility of combined roentgeno-radionuclide studies of the lungs in preventive mass screening of workers in an industrial enterprise].

The results of a combined roentgeno-radionuclide investigation of the lungs were studied in 45 persons at risk of developing chronic nonspecific pulmonary diseases, diagnosed in a mass screening of 3000 workers at an industrial enterprise. The results of fluorographic, roentgenoscopic and roentgenographic investigations of the lungs, roentgeno-pneumopolygraphy and radionuclide investigation of lung perfusion (pulmoscintigraphy with 99mTc-labeled albumin macroaggregates) were compared. During this combined investigation the signs of nonspecific pulmonary diseases were diagnosed in 40% of the patients, changes of the pulmonary blood flow--in 71%, changes in ventilation--in all the examinees.

[Quantitative hepato-biliary scintigraphy in the diagnosis of duodenogastric reflux and dysfunction of the Oddi's sphincter in post-cholecystectomy syndrome].

Qualitative indicators of dynamic hepato-biliary scintigraphy+ were studied before and after administration of cerucal in postcholecystectomy syndrome, determined by duodenogastric reflux (24 patients), dysfunction (21 patients) and stenosis of Oddi sphincter (17 patients) and in a control group (28 volunteers) without any complaints after cholecystectomy. A conclusion was made that dynamic hepato-biliary scintigraphy+ allowed quantitative estimation of duodenal reflux to be made and the dynamics of excretion of radiopharmagent before and after administration of cerucal may be an indicator of the functional state of the Oddi sphincter.

[Radionuclide study of the bone marrow using 99mTc-coren in patients with polycythemia vera].

The results of radionuclide investigation of the bone marrow in 44 patients (of them 32 with polycythemia vera) were presented. The informative value of bone marrow scintigraphy and whole-body radiometry using 99mTc-coren was shown in the patients with polycythemia vera at advanced stages. The results obtained made it possible to specify a clinical stage and prognosis of disease, and to optimize therapy.