Meanwhile,the CT scan demonstrated higher density of lung in BLM group than control group,while the density of MPD group better than BLM group with small area around hilum of lung.

• MPD组水肿和实变较BLM组轻; CT扫描显示BLM组大鼠肺门周围阴影密度增高,MPD组阴影的范围较小、密度减低。