問題詳情
16.數位減贅血管攝影（digital subtraction angiography）中，減贅後影像之訊雜比（SNR）是和血管中碘的濃度以及輻射劑量有關，請問下列何者在增加影像之SNR上最有效率？
(A)提高碘濃度
(B)增加曝露因子
(C)降低碘濃度
(D)降低曝露因子
(A)提高碘濃度
(B)增加曝露因子
(C)降低碘濃度
(D)降低曝露因子
參考答案
答案：A
難度：簡單0.764331
統計：A(120),B(27),C(3),D(7),E(0)
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