Dynamically observing carotid artery intimal injury in mice using 7T micro-MR imaging
10.3760/cma.j.issn.0254-9026.2010.06.022
- VernacularTitle:超高场强小动物磁共振成像活体观察小鼠颈动脉内膜损伤后的动态变化
- Author:
Jun CHEN
;
Zhenyu JIA
;
Zhanlong MA
;
Xiuming ZAHNG
;
Youjin WANG
;
Yuanyuan WANG
;
Gaojun TENG
- Publication Type:Journal Article
- Keywords:
Magnetic resonance imaging;
Tunicaintime;
Disease models,animal
- From:
Chinese Journal of Geriatrics
2010;29(6):513-517
- CountryChina
- Language:Chinese
-
Abstract:
Objective To dynamically observe stenosis and wall thickness of carotid artery with endothelium injury in mouse using 7T micro-MR imaging in vivo. Methods A mouse model of carotid artery intimal injury was established by removing endothelium with a flexible wire. The lumen diameter, lumen area, wall thickness and wall area of the injured arteries were observed, and serial MR scanning was performed in different time points after operation. Results The injured arteries and perivascular parenchyma were clearly observed by MR imaging. Before and 1, 5, 10 and 15 days after artery injury, the lumen diameter were (0.57±0.07)mm,(0.41±0.19)mm, (0.44±0.10)mm, (0.43±0.10)mm and (0.47±0.11)mm respectively, and the lumen area were (0.30±0.06)mm2, (0.18±0.11)mm2, (0.18±0.06)mm2, (0.18±0.06)mm2 and (0.22±0.07)mm2. The thickness of artery wall was(0.23±0.12)mm, and the area of artery wall was (0.35±0.24)mm2 15days after artery injury. Conclusions Stenosis and wall thickening of carotid artery after the artery intimal injury of mouse can be dynamically observed on MR imaging in vivo.
