34.磁振造影中,下列何者可使切片厚度減半?
(A)梯度不變,射頻頻寬(bandwidth)減半
(B)梯度不變,射頻頻寬(bandwidth)加倍
(C)梯度減半,射頻頻寬(bandwidth)不變
(D)梯度減半,射頻頻寬(bandwidth)減半
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統計: A(1428), B(298), C(129), D(106), E(0) #1150753
統計: A(1428), B(298), C(129), D(106), E(0) #1150753
詳解 (共 2 筆)
#3815716
∆Z=BW/(r•Gz)
r,Gz不變,BW減半>>>∆Z切面厚度變為原先的一半
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