Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Modelling slow wave activity in the small intestine.

Anita Shu-Han Lin1, Martin L Buist, Nicolas P Smith

  • 1Bioengineering Institute, The University of Auckland, Level 6, 70 Symonds Street, Private Bag 92019, Auckland, New Zealand.

Journal of Theoretical Biology
|April 22, 2006
PubMed
Summary

This study presents an anatomically accurate computational model of the small intestine to simulate slow wave activity. The model successfully replicates the natural decline in slow wave frequency and conduction velocity along the gastrointestinal tract.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Bruch's Membrane Contributes to the Structural Integrity of the Normal Human Eye.

Investigative ophthalmology & visual science·2026
Same author

3D Structural Phenotype of the Optic Nerve Head in Glaucoma and Myopia-A Key to Improving Glaucoma Diagnosis in Myopic Populations.

American journal of ophthalmology·2025
Same author

Fusing Structural Phenotypes with Functional Data for Early Prediction of Primary Angle-Closure Glaucoma Progression.

ArXiv·2025
Same author

Computational modelling of cardiovascular pathophysiology to risk stratify commercial spaceflight.

Nature reviews. Cardiology·2024
Same author

The origin of intraluminal pressure waves in gastrointestinal tract.

Medical & biological engineering & computing·2024
Same author

Biventricular finite element modeling of the fetal heart in health and during critical aortic stenosis.

Biomechanics and modeling in mechanobiology·2024

Area of Science:

  • Computational biology
  • Gastrointestinal physiology
  • Biomedical modeling

Background:

  • Slow wave activity in the small intestine is crucial for motility.
  • Previous models lacked anatomical accuracy.
  • Understanding these electrical patterns is key to diagnosing motility disorders.

Purpose of the Study:

  • To develop an anatomically based computational model of the human small intestine.
  • To simulate and analyze slow wave propagation using physiological parameters.
  • To validate the model against known experimental observations.

Main Methods:

  • Utilized geometric data from the Visible Human project for anatomical accuracy.
  • Employed a one-dimensional finite element mesh and a modified Fitzhugh-Nagumo cell model.

Related Experiment Videos

  • Incorporated the monodomain equation for slow wave propagation simulation with a high-resolution finite difference grid.

    • Main Results:

    • Simulations showed a gradual decline in slow wave frequency from 12 cpm in the duodenum to 8 cpm in the ileum.
    • Conduction velocity decreased along the small intestine (10.7 cm/s to 1.4 cm/s), matching canine data.
    • The model qualitatively reproduced normal slow wave activity patterns.

    Conclusions:

    • The developed anatomical model provides a robust framework for simulating small intestinal slow wave activity.
    • This computational approach can aid in understanding gastrointestinal motility and dysfunction.
    • The model's ability to replicate physiological findings supports its potential for further research.