| 摘要 |
FIELD: medicine.C-methionine 350 MBq/mis additionally administered intravenously into the patient withF-FDG-negative tumour at least 18 hours afterF-FDG injection; 10-15 min later, positron emission tomographic scanning of the thoracic organ follows. Either before the emission tomographic scanning withF-FDG,C-methionine 350 MBq/mis administered intravenously into the patient, and 10-15 min later, the PET scanning is performed. The intravenous administration ofF-FDG for the PET procedure is performed at least 3 months after theC-methionine injection, while the PET scanning withF-FDG is performed at least 120 min after administered in a dose of 110 MBq/m.Typical lung carcinoid is diagnosed by theC-methionine accumulation in the tumour and the absence of theF-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 |
