摘要
实验测得了猫在心室颤前、后的脑微动脉内径及血压的变化。引入增量应力和应变的概念，计算了在心室颤前后微动脉血管（内径小于１００μｍ）应力与应变的变化规律，并获得了在不同期间内血管的本构方程。
The microvascular diameter in the brain is grcatly changed together with theblood pressure during and after ventricular fibrillation(VF). The internal diameters of cerebral mi-crovessels in cats were measured under a fluorescence videomicroscope simultaneously with the arte-rial blood pressure during and after the VF. By in troducing a incremental concept under the condi-tion of the microvascular wall in compressibility,both the incremental stress and strain were ealcu-lated for arterioles(internal diameter<100μm)during and after VF. The stress and strain obtainedshowed change of histeresis loop in their relationship during the VF and 6 minutes after the VF, andalso showed an almost linear relationship 6 minutes after the VF.
出处
《重庆大学学报（自然科学版）》
CAS
CSCD
1994年第5期143-146,共4页
Journal of Chongqing University
关键词
心室纤颤
脑
微动脉血管
应力实验
ventricular fibrillation
incremental stress
lncremental strain
