The main artery and kidney was kept enhancing for 1 hour after 100 nm BFVs liposome was injected in ear vein of the rabbits.

• 包封率为69±5.；4%25，远高于其它类型脂质体，100nmIFVs脂质体经兔耳静脉缓慢注射后大动脉及肾脏得以持续强化，长达1小时左右。