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A novel procedure for the mechanical characterization of the uterine cervix during pregnancy


Badir, Sabrina; Bajka, Michael; Mazza, Edoardo (2013). A novel procedure for the mechanical characterization of the uterine cervix during pregnancy. Journal of the Mechanical Behavior of Biomedical Materials, 27:143-153.

Abstract

An in-vivo measurement procedure is presented to characterize the mechanical behavior of human uterine cervix during pregnancy. Based on the aspiration method, a new instrument was developed to provide an inherently safe and easy-to-use mechanical testing technique. Initial measurements were performed on non-pregnant women to develop an appropriate measurement protocol. An inverse analysis was carried out to determine representative model equations for cervical tissue. This model was used in a FE based parametric study focusing on the uncertainties related to the experiment. On this basis, a novel procedure was established which enabled for the first time to conduct mechanical measurements on 50 pregnant women in over 600 applications during gestation. An inverse analysis of the average tissue response at each trimester was performed to determine representative model equations for the cervix in the course of pregnancy.

Abstract

An in-vivo measurement procedure is presented to characterize the mechanical behavior of human uterine cervix during pregnancy. Based on the aspiration method, a new instrument was developed to provide an inherently safe and easy-to-use mechanical testing technique. Initial measurements were performed on non-pregnant women to develop an appropriate measurement protocol. An inverse analysis was carried out to determine representative model equations for cervical tissue. This model was used in a FE based parametric study focusing on the uncertainties related to the experiment. On this basis, a novel procedure was established which enabled for the first time to conduct mechanical measurements on 50 pregnant women in over 600 applications during gestation. An inverse analysis of the average tissue response at each trimester was performed to determine representative model equations for the cervix in the course of pregnancy.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Gynecology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2013
Deposited On:03 Feb 2014 13:31
Last Modified:05 Apr 2016 17:35
Publisher:Elsevier
ISSN:1878-0180
Publisher DOI:https://doi.org/10.1016/j.jmbbm.2012.11.020
PubMed ID:23274486

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