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ＦＤＧ(18 ｆｌｕｏｒｉｎｅ .2 ｆｌｕｏｒｏ 2 ｄｅｏｘｙｇｌｕｃｏｓｅ)即18Ｆ标记的脱氧葡萄糖 ,它是一种葡萄糖类似物 ,和人体所需的葡萄糖一样进入细胞 ,在细胞中被磷酸化形成ＦＤＧ 6 磷酸 ,但是不能进一步代谢而积聚于细胞内。当ＦＤＧ中的18Ｆ衰变时由湮灭辐射出?
FDG (18 fluorine .2 fluoro 2 deoxyglucose) is an 18F-labeled deoxyglucose, which is a glucose analogue. It enters cells like human glucose, and is phosphorylated in cells to form FDG 6 phosphate, but it cannot be further metabolized. And accumulate in the cells. When the 18F of FDG decays, it is radiated by annihilation?