Alterations to the mechanical response of the gastrointestinal tract induced by functional gastrointestinal disorders and the feasibility of developing an ultrasonic diagnostic system

Autor: Dohyung Lim, Hansung Kim, Yong Heum Lee, Dae Gon Woo, In Deok Kong, Won Pil Park
Rok vydání: 2008
Předmět:
Zdroj: Journal of Mechanical Science and Technology. 22:846-855
ISSN: 1976-3824
1738-494X
DOI: 10.1007/s12206-008-0203-5
Popis: Functional gastrointestinal disorders (FGIDs) affect millions of people of all ages, regardless of race or gender, but little information related to FGIDs is available and no diagnostic methods exist. Therefore, the aim of this study was to investigate the alterations to gastrointestinal tracts induced by FGIDs, and to identify the feasibility of developing an ultrasonic diagnostic system to detect these alterations. Palpation/percussion examinations and in vitro microindentation tests were performed on 40 participants with or without FGIDs and 20 Sprague-Dawley rats with or without simulated FGIDs to identify any alterations to the mechanical response of the gastrointestinal tract. A finite difference analysis was performed for three simple models with or without assumed FGIDs to identify the feasibility of developing an ultrasonic diagnostic system. The results obtained from the palpation/percussion examinations and in vitro micro-indentation tests showed that a gastrointestinal tract with an FGID became more rigid than a healthy tract (p < 0.05). The results obtained from the finite difference analysis showed that an ultrasonic diagnostic system for FGIDs effectively detects alterations to the rigidity of the gastrointestinal tract, indicating that the development of an ultrasonic diagnostic system is reasonable and will aid in the diagnosis and treatment of FGIDs.
Databáze: OpenAIRE
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