35.已知在1.5 T的磁振造影中,水與脂肪的旋進頻率(Larmor frequency)差別為220 Hz,化學位移差距為3.4
ppm,在4.5 T之下,水與脂肪的旋進頻率差別與化學位移差距分別為多少?
(A)660 Hz,3.4 ppm
(B)660 Hz,10.2 ppm
(C)220 Hz,3.4 ppm
(D)220 Hz,10.2 ppm
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統計: A(1833), B(254), C(177), D(89), E(0) #2039552
統計: A(1833), B(254), C(177), D(89), E(0) #2039552