1.對螺旋式CT而言,試比較pitch ratio=0.5:1時與pitch ratio=2:1時,患者接受之劑量的高
低情形為何?
(A)pitch ratio=0.5:1時劑量較低
(B)pitch ratio=0.5:1時劑量較高
(C)相同
(D)無法比較
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統計: A(113), B(1680), C(31), D(4), E(0) #1042701
統計: A(113), B(1680), C(31), D(4), E(0) #1042701