[Study on methods measuring mechanical properties of arterial wall by macroscopic indentation].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
; 41(3): 469-475, 2024 Jun 25.
Article
en Zh
| MEDLINE
| ID: mdl-38932532
ABSTRACT
Accurately evaluating the local biomechanics of arterial wall is crucial for diagnosing and treating arterial diseases. Indentation measurement can be used to evaluate the local mechanical properties of the artery. However, the effects of the indenter's geometric structure and the analysis theory on measurement results remain uncertain. In this paper, four kinds of indenters were used to measure the pulmonary aorta, the proximal thoracic aorta and the distal thoracic aorta in pigs, and the arterial elastic modulus was calculated by Sneddon and Sirghi theory to explore the influence of the indenter geometry and analysis theory on the measured elastic modulus. The results showed that the arterial elastic modulus measured by cylindrical indenter was lower than that measured by spherical indenter. In addition, compared with the calculated results of Sirghi theory, the Sneddon theory, which does not take adhesion forces in account, resulted in slightly larger elastic modulus values. In conclusion, this study provides parametric support for effective measurement of arterial local mechanical properties by millimeter indentation technique.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Aorta Torácica
/
Arteria Pulmonar
/
Módulo de Elasticidad
Límite:
Animals
Idioma:
Zh
Revista:
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2024
Tipo del documento:
Article