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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Endoscopic Procedures III: Video Capsule Endoscopy

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Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Urodynamic Studies: Uroflowmetry

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Related Experiment Video

Updated: Jun 29, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
03:49

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System

Published on: September 20, 2018

Quantification of evacuation proctography

S Halligan1, S McGee, C I Bartram

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

Diseases of the Colon and Rectum
|November 1, 1994
PubMed
Summary
This summary is machine-generated.

Evacuation proctography accurately estimates rectal evacuation time and completeness. This study validates its clinical use for assessing anorectal function.

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Last Updated: Jun 29, 2026

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07:41

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

Published on: April 17, 2019

Area of Science:

  • Gastroenterology
  • Radiology
  • Pelvic Floor Disorders

Background:

  • Assessing rectal evacuation is crucial for diagnosing defecatory disorders.
  • Traditional methods may lack precision in quantifying evacuation dynamics.

Purpose of the Study:

  • To determine if evacuation proctography offers a clinically acceptable estimation of rectal evacuation time.
  • To assess the accuracy of evacuation proctography in evaluating the completeness of rectal emptying.

Main Methods:

  • Combined rectodynamics (weight transducer, chart recorder) with evacuation proctography.
  • Quantified expelled contrast weight and rate against lateral area change on proctography.

Main Results:

  • Evacuation times showed a mean difference of 0.1 seconds (SD 1.9s, 95% agreement +/- 3.9s).
  • Percentage of contrast evacuated by weight versus rectal area change had a mean difference of 4.3% (SD 11.9%, 95% agreement -19.5% to +28.1%).

Conclusions:

  • Evacuation proctography provides a valid estimation of rectal evacuation time.
  • The technique reliably assesses the completeness of rectal evacuation.