目的：评价彩色多普勒血液显像（ＣＤＦＩ）对腹主动脉瘤（ＡＡＡ）的诊断价值，方法：对６例腹主动脉瘤进行ＣＤＦＩ检查。结果：６例腹主动脉瘤中５例为真性腹主动脉瘤，１例为增层......

After the pyramids,obelisks must be the most iconic symbol of Ancient Egypt,but visually little is known about the means......