Mechanical properties for dilated human ascending aorta obtained from excised surgical tissue were presented. Specimens for opening angle, biaxial elastic, and uniaxial circumferential strength tests were cut from excised tissue obtained from 54 patients (aged 18-81 years) undergoing elective aortic graft replacement surgery. Results indicated rapid increase in circumferential and axial stresses at lower strains in the older patient group than in younger. Changes in mechanical properties suggested that age influenced the risk of aortic dissection or rupture of dilated ascending aorta.
|Number of pages||12|
|Journal||Annals of biomedical engineering|
|State||Published - 2002|
- Aortic disease
- Vascular mechanics