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

Normal anorectum: dynamic MR imaging anatomy.

R H Kruyt1, J B Delemarre, J Doornbos

  • 1Department of Diagnostic Radiology, Leiden University Hospital, The Netherlands.

Radiology
|April 1, 1991
PubMed
Summary
This summary is machine-generated.

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

Lubricin/Proteoglycan 4 binds to and regulates the activity of Toll-Like Receptors In Vitro.

Scientific reports·2016
Same author

Mitral valve regurgitation: accurate blood flow quantification with MRI.

Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·2015
Same author

Psychological distress and need for psycho-oncological support in spouses of total laryngectomised cancer patients-results for the first 3 years after surgery.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer·2014
Same author

[Social integration and its relevance for quality of life after laryngectomy].

Laryngo- rhino- otologie·2013
Same author

Permeabilization of plant cells: (31)P NMR studies on the permeability of the tonoplast.

Plant cell reports·2013
Same author

Molecular dynamics simulations reveal that apo-HisJ can sample a closed conformation.

Proteins·2013
Same journal

Erratum for: Prediction of Lobar Emphysema Progression with a CT-Based Foundational Model.

Radiology·2026
Same journal

Erratum for: Associations of MRI-derived Paraspinal IMAT and LMM with Cardiometabolic Risk Factors: Results from a German Cohort.

Radiology·2026
Same journal

Erratum for: Blue Rubber Bleb Nevus Syndrome.

Radiology·2026
Same journal

Redefining the Clinical Role of MRI in Endometrial Cancer Staging.

Radiology·2026
Same journal

To Ablate or Not to Ablate: The Colorectal Liver Metastasis Question.

Radiology·2026
Same journal

The Limits of Radiologic Categorization in Pulmonary Nonsolid Nodules.

Radiology·2026
See all related articles

Magnetic resonance (MR) imaging precisely measures anorectal anatomy and the anorectal angle during various physiological states. This patient-friendly technique offers advantages over traditional defecography for assessing rectal wall mobility.

Area of Science:

  • Radiology
  • Gastroenterology
  • Anatomy

Background:

  • Accurate assessment of anorectal anatomy and function is crucial for diagnosing pelvic floor disorders.
  • Traditional methods like defecography have limitations in precision and patient comfort.
  • Magnetic resonance (MR) imaging offers potential for detailed, non-invasive visualization.

Purpose of the Study:

  • To analyze anorectal anatomy and the anorectal angle using MR imaging at rest, during perineal contraction, and straining.
  • To establish intra- and inter-observer/patient variations for key anorectal measurements.
  • To compare MR imaging findings with standard radiography defecography.

Main Methods:

  • MR imaging was performed on 10 asymptomatic subjects in three states: rest, perineal contraction, and straining.

Related Experiment Videos

  • Measurements included anorectal angle, anorectal junction position, and plica of Kohlrausch position.
  • MR imaging results were compared to conventional defecography.

    • Main Results:

    • MR imaging demonstrated high precision and patient-friendliness compared to defecography.
    • It effectively depicted posterior rectal wall mobility, a feature not seen in dynamic defecography.
    • A posterior rectal wall descent exceeding 20 mm from rest to straining was identified as potentially pathologic.

    Conclusions:

    • MR imaging is a precise and patient-friendly tool for evaluating anorectal anatomy and function.
    • It provides superior visualization of rectal wall mobility compared to defecography.
    • The identified 20 mm descent threshold may aid in surgical patient selection.