Key result
Excised porcine anterior and posterior mitral valve leaflets exhibited nonlinearly elastic, anisotropic behavior, being less extensible in the circumferential than radial direction.
This study provides the first biaxial mechanical data for porcine mitral valves, demonstrating nonlinearly elastic, anisotropic behavior with distinct differences between anterior and posterior leaflets.
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May refine computational mitral valve models; leaves open human translation and clinical validation.
May‐Newman et al. (1995) studied this question. Cyclic equibiaxial and strip biaxial stretch protocols was evaluated on Cauchy stress and Lagrangian strain. Excised porcine anterior and posterior mitral valve leaflets exhibited nonlinearly elastic, anisotropic behavior, being less extensible in the circumferential than radial direction.
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