[Purpose] To explore the value of 18F-FDG PET in assessment of staging for nasopharyngeal carcinoma.

Objective To assess the value of 18F-FDG PET cerebral 3D mode on the localizing the epileptic foci.

The paper is to analyze the value of 18F-FDG PET/CT,which is combined with alpha-fetoprotein(AFP) ,in detecting primary hepatic carcinoma(PLC) and monitoring its recurrence.

Each patient underwent CT examination and 18F-FDG PET/CT examination at the same time.

Clinical Value of FDG PET Imaging in Monitoring Hepatocellular Carcinoma after Chemoembolization--Compared FDG PET with CT in 10 Cases;

Fluorine-18 can be introduced into a target molecule to prepare the corresponding 18F-labeled radiopharmaceuticals through direct and indirect radiofluorinations.

It is of great importance to study the preparation of radiopharmaceuticals for brain receptor imaging with PET, among which Fluorine-18 was used as the radionuclide in many of these radiopharmaceuticals.

3 -Deoxy-3 -Fluorothymidine(~(18)F-FLT) is synthesized by "BAThy" method at Tracerlab FX_(F-N) system.

Objective To introduce the production of()~(18)F-FDG and discuss about the effect of()~(18)F-FDG in tumor diagnosis.

~(18)F-FDG PET has been widely applied in the diagnosis and therapeutic evaluation in oncology,but it has limitation in diagnosing of some kinds of tumors,such as brain tumor,prostate cancer and bladder cancer because of its metabolism characteristic.