MR T2 mapping in evaluation on myocardial tissue characteristics of acute myocardial ischemia models established with interventional embolization
10.13929/j.issn.1672-8475.2020.01.013
- Author:
Xinfeng LIU
1
Author Information
1. Department of Radiology, Guizhou Provincial People's Hospital
- Publication Type:Journal Article
- Keywords:
Embolism;
Magnetic resonance imaging;
Myocardial ischemia;
Swine
- From:
Chinese Journal of Interventional Imaging and Therapy
2020;17(1):43-46
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the feasibility of T2 mapping technology for evaluation on myocardial tissue characteristics of acute myocardial ischemia models established with interventional embolization. Methods: Acute myocardial ischemia models were established with interventional embolization in 15 healthy adult Guizhou mini-swines. T2 values of left ventricular myocardium were measured and compared before and after modeling. Results: Thirteen models were successfully established, and the success rate was 86.67% (13/15). There was no significant difference of T2 value of left ventricle myocardial bottom, middle and apex before modeling (P=0.70). The overall difference after modeling was statistically significant (P<0.01), and T2 value of cardiac bottom was lower than that of the heart and apex of left ventricle (both P<0.01), while there was no significant difference between the middle and the apex of left ventricle (P>0.05). T2 values of middle and apex of left ventricle after modeling were larger than those before modeling (both P<0.01). There was no significant difference of T2 value of myocardial base before and after modeling (P>0.05). Conclusion: The success rate of establishing acute myocardial ischemia models with interventional embolization was high. The degree of myocardial ischemic edema can be quantitatively analyzed by using T2 mapping technique.
