A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressure - Publikacja - MOST Wiedzy

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A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressure

Abstrakt

The study concerns mechanical behaviour of a living human abdominal wall. A better mechanical understanding of a human abdominal wall and recognition of its material properties is required to find mechanically compatible surgical meshes to significantly improve the treatment of ventral hernias. A non-invasive methodology, based on in vivo optical measurements is proposed to determine strains of abdominal wall corresponding to a known intraabdominal pressure. The measurement is performed in the course of a standard procedure of peritoneal dialysis. A dedicated experimental stand is designed for the experiment. The photogrammetric technique is employed to recover the three-dimensional surface geometry of the anterior abdominal wall at the initial and terminal instants of the dialysis. This corresponds to two deformation states, before and after filling the abdominal cavity with dialysis fluid. The study provides information on strain fields of living human abdominal wall. The inquiry is aimed at principal strains and their directions, observed at the level from -10% to 17%. The intraabdominal pressure related to the amount of introduced dialysis fluid measured within the medical procedure covers the range 11–18.5 cmH2O. The methodology leads to the deformation state of the abdominal wall according to the corresponding loading conditions. Therefore, the study is a step towards an identification of mechanical properties of living human abdominal wall.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Journal of the Mechanical Behavior of Biomedical Materials nr 125,
ISSN: 1751-6161
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Lubowiecka I., Szepietowska K., Tomaszewska A., Bielski P. M., Chmielewski M., Lichodziejewska-Niemierko M., Szymczak C. K.: A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressure// Journal of the Mechanical Behavior of Biomedical Materials -Vol. 125, (2022), s.104902-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.jmbbm.2021.104902
Źródła finansowania:
Weryfikacja:
Politechnika Gdańska

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