title: [An experimental study on the changes in the biomechanical characters of rat thoracic aorta].
abstract: The changes in biomechanics of rat thoracic aorta at different post mortem interval (PMI) (0-7 d) were observed when it was stretched in one direction. Some significant changes were disclosed by statistical analyses. Maximum stretch, maximum strain and maximum energy showed a significant relationship with PMI, the coefficients of determination being 0.822, 0.716 and 0.669 respectively, P < 0.001. The stretch experiment of thoracic aorta may be a novel method to determine PMI.
authors.affiliation: West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu 610041, China.
authors.forename: Fu
authors.initials: F
authors.lastname: Zhang
authors.forename: Ruiqing
authors.initials: R
authors.lastname: Zhou
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Chen
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Liao
mesh_terms: D000818:Animals; D001013:Aorta, Thoracic / Q000473:pathology*; D001696:Biomechanical Phenomena; D008297:Male; D011180:Postmortem Changes; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D013314:Stress, Mechanical; D013997:Time Factors