Full-field in vivo experimental study of the strains of a breathing human abdominal wall with intra-abdominal pressure variation

Katarzyna Szepietowska; Mateusz Troka; Monika Lichodziejewska-Niemierko; Michał Chmielewski; Izabela Lubowiecka

doi:10.1016/j.jmbbm.2023.106148

Full-field in vivo experimental study of the strains of a breathing human abdominal wall with intra-abdominal pressure variation

Abstract

The presented study aims to assess the mechanical behaviour of the anterior abdominal wall based on an in vivo experiment on humans. Full-field measurement of abdominal wall displacement during changes of intra-abdominal pressure is performed using a digital image correlation (DIC) system. Continuous measurement in time enables the observation of changes in the strain field during breathing. The understanding of the mechanical behaviour of a living human abdominal wall is important for the proper design of surgical meshes used for ventral hernia repair, which was also a motivation for the research presented below. The research refers to the strain field of a loaded abdominal wall and presents the evolution of principal strains and their directions in the case of 12 subjects, 8 male and 4 female. Peritoneal dialysis procedure allows for the measurement of intra-abdominal pressure after fluid introduction. High variability among patients is observed, also in terms of principal strain direction. Subjects exhibit intra-abdominal pressure of values from 11 to 21 cmH2O. However, the strain values are not strongly correlated with the pressure value, indicated variability of material properties.

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Authors (5)

Katarzyna Szepietowska dr inż.
Mateusz Troka
Monika Lichodziejewska-Niemierko prof. dr hab.
Michał Chmielewski dr hab.med.
Izabela Lubowiecka dr hab. inż.

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Articles

Type:

artykuły w czasopismach

Published in:

Journal of the Mechanical Behavior of Biomedical Materials no. 147,
ISSN: 1751-6161

Language:

English

Publication year:

2023

Bibliographic description:

Szepietowska K., Troka M., Lichodziejewska-Niemierko M., Chmielewski M., Lubowiecka I.: Full-field in vivo experimental study of the strains of a breathing human abdominal wall with intra-abdominal pressure variation// Journal of the Mechanical Behavior of Biomedical Materials -Vol. 147, (2023), s.106148-

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