A.對(duì)比劑總量80~100ml,流速3~4ml/s,掃描延遲時(shí)間15~20秒
B.對(duì)比劑總量60~100ml,流速2~2.5ml/s,掃描延遲時(shí)間30~35秒
C.對(duì)比劑總量60~80ml,流速5.0ml/s,然后以5.0ml/s的速度注入30ml生理鹽水
D.對(duì)比劑總量60~80ml,流速3.0ml/s,掃描延遲時(shí)間15~18秒
E.對(duì)比劑總量60~100ml,流速2.5~3ml/s,掃描延遲時(shí)間20~25秒