44.下列那⼀種磁振造影技術需要使用雙極性磁梯度(bipolar gradient)進行造影?
(A)血流灌注影像(perfusion imaging)
(B)擴散加權影像(diffusion weighted imaging)
(C)功能性磁振造影(functional MRI)
(D)磁振頻譜造影(MR spectroscopy)
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統計: A(519), B(1155), C(436), D(390), E(0) #2039481
統計: A(519), B(1155), C(436), D(390), E(0) #2039481