Related Experiment Video
Updated: Mar 28, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
How to Perform and Interpret a High-resolution Anorectal Manometry Test.
Tae Hee Lee1, Adil E Bharucha2
1Institute for Digestive Research, Soonchunhyang University Seoul Hospital, Seoul, Korea.
High-resolution anorectal manometry (HR-ARM) and high-definition anorectal manometry (HD-ARM) offer improved spatiotemporal pressure data for anorectal function assessment. While easier to interpret, these advanced systems are more costly and less durable than traditional methods.
Area of Science:
- Gastroenterology and clinical physiology
- Medical device technology
- Diagnostic imaging and analysis
Background:
- Traditional anorectal manometry lacks detailed spatiotemporal pressure resolution.
- Advancements in catheter technology have led to high-resolution (HR-ARM) and high-definition (HD-ARM) systems.
- These newer systems utilize densely packed sensors for enhanced pressure mapping.
Purpose of the Study:
- To comprehensively review high-resolution anorectal manometry (HR-ARM) and high-definition anorectal manometry (HD-ARM) systems.
- To detail the methods for conducting, analyzing, and interpreting HR-ARM and HD-ARM.
- To compare HR-ARM/HD-ARM with non-high-resolution manometry techniques.
Main Methods:
- Systematic review of existing literature on HR-ARM and HD-ARM.
- Comparative analysis of technical specifications and performance metrics.
- Evaluation of procedural efficiency and interpretability.
Main Results:
- HR-ARM and HD-ARM provide superior spatiotemporal pressure data compared to conventional methods.
- Studies using HR-ARM/HD-ARM are quicker to perform and simpler to interpret.
- These advanced catheters are more expensive, fragile, and have a shorter operational lifespan.
Conclusions:
- HR-ARM and HD-ARM represent significant technological advancements in anorectal manometry.
- Despite benefits in efficiency and interpretation, cost and durability are key considerations.
- Further research is essential to establish normative values and confirm the clinical utility of HR-ARM/HD-ARM over standard manometry.
More Related Videos
Related Concept Videos
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Assessing Body Temperature - Rectal
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Lower GI Series: Barium Enema
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Urodynamic Studies: Uroflowmetry
Endoscopic Procedures II: Colonoscopy

