試題詳解

40.磁振造影的技術中，使用spin-echo脈衝程序，可以取得 proton density weighting，T1 weighting 及T2 weighting影像。下列有關此一技術的敘述，何者錯誤？
(A)Short TR enhances the T1 weighting
(B)Long TR enhances the proton density weighting
(C)Long TE enhances the T1 weighting
(D)Long TE enhances the T2 weighting