40.下圖是下肢磁振造影影像,其中之圓形影像為下列何者所造成?
(A)ghost artifact
(B)truncation artifact
(C)cross- talk artifact
(D)magic angle artifact
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統計: A(7), B(6), C(12), D(33), E(0) #3817795
統計: A(7), B(6), C(12), D(33), E(0) #3817795