[99mTcDTPA-aerosol clearance in early diagnosis of pulmonary changes in patients with active systemic lupus erythematosus].

Nineteen patients with active SLE and a control group of 20 healthy persons were investigated. We have made to all of them 99mTcDTPA-aerosol scintigraphy and the following pulmonary functional tests--Dc CO, Dm, Vc, HRCT. Accelerated clearance of 99mTcDTPA was found in all patients with active SLE.

[133Xe (xenon) study of pulmonary ventilation and perfusion with a gamma camera].

Pulmonary ventilation and perfusion on regional level was measured by determining the distribution and elimination of introduced by inhalation 133He-gas, accordingly of intravenously injected 133He-solution. Fifty seven patients 7 to 60 years of age were included in the study, distributed by diagnoses, as follows: pulmonary thromboembolism 24 patients, 16 children with recurrent bronchopneumonia, pneumonia 10, central lung cancer 4, lung echinococcus 2 and one patient with LTE associated with chronic obstructive lung disease. All had ventilatory and subsequent perfusion dynamic scintigraphy.

[Volumetric indices of the left ventricle in patients with ischemic heart disease].

In addition to the conventional indices of radionuclide angiography with ECG-gait in equilibrium, the authors determined the volume indices of the left ventricle at rest by the so-called nongeometric method in 30 patients with ischemic heart disease. Patients without myocardial infarct (13 subjects) had decreased total left-ventricular ejection fraction (EF), as a result of increase in the end systolic volume index (ESVI) in one of the tested patients. Changes in the regional fractions and in the wall kinetics were detected in 6, resp.