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                      PETCT和CT有什么不同

                      PETCT全稱叫做正電子發射計算機斷層顯像,是一種利用X射線對人體進行體層檢查的手段。

                      常規CT可以清楚的看到病灶的解剖位置,病變大小等,但是對于良惡性的診斷沒有明確意義。

                      而PETCT利用正電子核素標記葡萄糖等人體代謝物作為顯像劑,通過病灶對顯像劑的攝取來反映其代謝變化,從而了解病變的生物活性。是一種無創的全面發現病灶,精確定位及判斷病灶良惡性的檢查手段。

                       

                       

                       

                       

                       

                       

                       

                       


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