Experimental study of viscoelastic characteristics of canine ventricular myocardium in vitro
- VernacularTitle:犬离体心室肌粘弹性特性实验研究
- Author:
Jinsong LI
- Publication Type:Journal Article
- Keywords:
Isolated canine myocardium;
Indentation creep test;
Viscoelastic parameteres;
Old myocardial infarction
- From:
Journal of Chongqing Medical University
1986;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:With biomechanical trial, the feasibility was investigated using the indentation method to assess myocardium viscoelasticity and the change of viscoelasticity after old myocardial infarction was also investigated. Method:The old myocardial infarction moldel was established using ligating the left anterior descending branch under thoracotomy.With the instrument of indentation, creep test was applied to the normal and old infarcted canine ventricular myocardium. Results:The viscoelastic parameteres of normal group:E164?9kPa,E2565?148kPa,E∞57?7kPa,?1.7?0.9?105kPa.s;old infarcted group: E1130?30kPa,E21076?466kPa,113?27kPa,?2.8?1.0?105kPa.s.The difference of parameteres in above two groups is significant in statistics(P
