49. 下圖箭號所指為何種假影(artifact)? 
(A)重疊假影(wraparound artifact)
(B)平行造影假影(parallel imaging artifact)
(C)呼吸假影(respiratory artifact)
(D)磁化率假影(susceptibility artifact)
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統計: A(23), B(28), C(53), D(961), E(0) #1059264
統計: A(23), B(28), C(53), D(961), E(0) #1059264