Search results for "Biaxial testing"

showing 1 items of 1 documents

Identification of circumferential regional heterogeneity of ascending thoracic aneurysmal aorta by biaxial mechanical testing

2019

Abstract Ascending thoracic aortic aneurysm (ATAA) in patients with bicuspid aortic valve (BAV) can present an asymmetrical aortic dilatation compared with patients with tricuspid aortic valve (TAV). This pattern of aneurysm dilatation led us to hypothesize that biomechanical differences likely induced by regional heterogeneity of material properties can underlie the observed asymmetric enlargement discrepancies between BAV ATAA and TAV ATAA. This study aimed to characterize the mechanical properties and associated aortic tissue stiffness changes along the circumferential direction of aortic rings collected from surgically-repaired patients with ATAA. Biaxial material testing was performed …

0301 basic medicineAortic valveMaleMaterial parameterBicuspid aortic valveHeart Valve DiseasesAorta Thoracic030204 cardiovascular system & hematologyThoracic aortic aneurysm03 medical and health sciences0302 clinical medicineBicuspid aortic valveAneurysmVascular StiffnessBicuspid Aortic Valve Diseasemedicine.arteryMedicineHumansIn patientMolecular BiologyAgedAged 80 and overAortaAortic Aneurysm Thoracicbusiness.industryAscending aortic aneurysmSettore ING-IND/34 - Bioingegneria IndustrialeAnatomyMiddle Agedmedicine.diseaseSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Tissue stiffness030104 developmental biologymedicine.anatomical_structureAortic Valvecardiovascular systemFemaleTissue stiffnessCardiology and Cardiovascular MedicinebusinessBiaxial testingSettore ICAR/08 - Scienza Delle CostruzioniElastic fiberDilatation Pathologic
researchProduct