DIAGNOSTIC TECHNIQUE FOR TYPICAL LUNG CARCINOID (VERSIONS) Russian patent published in 2015 - IPC A61B6/00 A61K51/00 

FIELD: medicine.

^{SUBSTANCE: 11}C-methionine 350 MBq/m² is additionally administered intravenously into the patient with ¹⁸F-FDG-negative tumour at least 18 hours after ¹⁸F-FDG injection; 10-15 min later, positron emission tomographic scanning of the thoracic organ follows. Either before the emission tomographic scanning with ¹⁸F-FDG, ¹¹C-methionine 350 MBq/m² is administered intravenously into the patient, and 10-15 min later, the PET scanning is performed. The intravenous administration of ¹⁸F-FDG for the PET procedure is performed at least 3 months after the ¹¹C-methionine injection, while the PET scanning with ¹⁸F-FDG is performed at least 120 min after administered in a dose of 110 MBq/m². Typical lung carcinoid is diagnosed by the ¹¹C-methionine accumulation in the tumour and the absence of the ¹⁸F-FDG accumulation therein.

EFFECT: higher accuracy of the early diagnosis of typical lung carcinoid and enabled differentiation from a benign tumour with no increase of patient's radiation exposure.

2 cl, 4 dwg, 2 ex