A.正常腎臟CT平掃可區(qū)分出腎皮質(zhì)和腎髓質(zhì)
B.增強(qiáng)皮質(zhì)期(開(kāi)始注藥后30~40s),腎皮質(zhì)顯影最清楚
C.正常情況下,CT圖像上腎實(shí)質(zhì)密度低于同層面脾臟密度
D.增強(qiáng)實(shí)質(zhì)期(開(kāi)始注藥后60~90s),腎皮質(zhì)、髓質(zhì)均顯影明顯,二者分界不再清晰
E.增強(qiáng)排泄期(開(kāi)始注藥后4~10min),腎集合系統(tǒng)開(kāi)始顯影