DIAGNOSTIC TECHNIQUE FOR EMBARRASSMENT OF VENTILATION Russian patent published in 2014 - IPC A61B6/00 

FIELD: medicine.

SUBSTANCE: technique involves inhaling a 99mTc-labelled diethylene triaminopentaacetate solution and performing a static radionuclide imaging of the lungs. That is combined with a delayed static radionuclide imaging ensured by measuring a specific activity of a radiopharmaceutical agent in the peripheral lungs 30 minutes after the completion of the inhalation procedure. The measured value is compared to a reference, and a time of the delayed static radionuclide imaging correspondent to a decrease of the activity of the radiopharmaceutical agent by 50-80% is determined. If observing the delay centres of the decrease of the specific activity of the radiopharmaceutical preparation in bronchi, the embarrassment of ventilation caused by deteriorated airway conductance is diagnosed.

EFFECT: more accurate diagnosis of the embarrassment of ventilation for the purpose of early detection of obstructive pulmonary diseases.

2 dwg, 1 ex