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

Anal endosonography: technique and normal anatomy.

P J Law1, C I Bartram

  • 1Department of Radiology, St. Mark's Hospital, London, England.

Gastrointestinal Radiology
|January 1, 1989
PubMed
Summary

High-resolution anal endosonography clearly visualizes the five anal canal layers. This rapid, well-tolerated imaging technique revealed anatomical differences in the external anal sphincter between males and females.

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

Assessing the effect of obesity-related traits on multiple myeloma using a Mendelian randomisation approach.

Blood cancer journal·2017
Same author

A method of dissecting the pelvic floor to allow anatomical validation of images of the soft tissues.

Clinical anatomy (New York, N.Y.)·2006
Same author

Quantitative colorectal cancer perfusion measurement by multidetector-row CT: does greater tumour coverage improve measurement reproducibility?

The British journal of radiology·2006
Same author

Comparison of radiologists' confidence in excluding significant colorectal neoplasia with multidetector-row CT colonography compared with double contrast barium enema.

The British journal of radiology·2006
Same author

Functional anorectal imaging.

Abdominal imaging·2005
Same author

Intra-individual comparison of patient acceptability of multidetector-row CT colonography and double-contrast barium enema.

Clinical radiology·2005

Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Anatomy

Background:

  • Anal endosonography is a valuable tool for visualizing anal canal structures.
  • Understanding the detailed anatomy of the anal canal is crucial for diagnosing and treating anorectal conditions.

Purpose of the Study:

  • To evaluate the utility of a specially designed hard cone attachment for radial 7-MHz anal endosonography.
  • To assess the high-resolution imaging capabilities of this technique for anal canal layers.
  • To investigate potential sex-based anatomical differences in the external anal sphincter.

Main Methods:

  • Anal endosonography was performed using a radial 7-MHz probe with a hard cone attachment.
  • Examinations included 26 normal patients, 3 post-sphincterotomy patients, 1 patient undergoing electromyophysiological mapping, and 2 resected specimens.
  • Image analysis focused on the five distinct layers of the anal canal.

Main Results:

  • The specialized anal endosonography provided rapid, simple, and well-tolerated examinations.
  • High-resolution images clearly depicted the mucosa, submucosa, internal sphincter, intersphincteric plane, and external anal sphincter.
  • Limited views of the ischiorectal fossa were obtained, and a distinct anterior external anal sphincter configuration was observed between males and females.

Conclusions:

  • The hard cone attachment facilitates high-resolution anal endosonography of the anal canal.
  • This imaging modality is effective for delineating the five anal canal layers.
  • Observed sex-based differences in the external anal sphincter warrant further investigation.

Related Experiment Videos