50.在MRI的blipped echo planar imaging脈衝序列中,影像在相位編碼(phase encoding)方向 視野之一半處(half field of view)常會出現假影,原因是來自於下列何者?
(A)渦電流(eddy current)
(B)週期性運動(periodic motion)
(C)取樣不足(undersampling)
(D)外界電磁波(radiofrequency)的干擾
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統計: A(1066), B(343), C(607), D(50), E(0) #1150449
統計: A(1066), B(343), C(607), D(50), E(0) #1150449