The pathohistological examination of the abdominal aortas showed serious disruption of the elastic tissue and loss of smooth muscle cells in tunica media of aortic aneurysm in the experimental group.

实验组腹主动脉的病理改变为中膜弹性纤维组织严重破坏，平滑肌细胞减少。

Light microscopy observations of the HIFU-treated arteries showed disorganization of adventitia, and coagulation and thinning of the tunica media.

实验后治疗组和对照组在不同时间点红细胞比容无显著性差异。