38.其他條件不變下,下列那一個造影參數的訊雜比(SNR)最佳?
(A)FOV = 24cm×24 cm,matrix size = 512×512
(B)FOV = 36cm×36 cm,matrix size = 256×256
(C)FOV = 36cm×36 cm,matrix size = 1024×1024
(D)FOV = 24cm×24 cm,matrix size = 128×128
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統計: A(109), B(186), C(508), D(875), E(0) #2973112
統計: A(109), B(186), C(508), D(875), E(0) #2973112