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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.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Feces Formation and Defecation01:26

Feces Formation and Defecation

After spending 3 to 10 hours in the large intestine, chyme loses a lot of water and becomes feces, the final product of digestion. Feces consist of undigested dietary fiber such as cellulose, mucus, sloughed-off epithelial cells, and microbes. The descending and sigmoid colon stores feces and uses haustral contractions to dry it out but retains enough water to give it a semi-solid texture.
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

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...
Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
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...
Assessment of the Abdomen I: Inspection and Auscultation01:25

Assessment of the Abdomen I: Inspection and Auscultation

Introduction
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection.

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Related Experiment Video

Updated: Jun 16, 2026

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

Defecography: a practical approach.

Niccoló Faccioli1, Alessio Comai, Paride Mainardi

  • 1Department of Radiology, G. B. Rossi University Hospital, Verona, Italy. niccolofcc@yahoo.com

Diagnostic and Interventional Radiology (Ankara, Turkey)
|January 29, 2010
PubMed
Summary
This summary is machine-generated.

Conventional video defecography is the gold standard for diagnosing evacuation dysfunctions. This pictorial essay details imaging features of common recto-anal and pelvic floor disorders, enhancing understanding of these conditions.

Related Experiment Videos

Last Updated: Jun 16, 2026

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

  • Radiology
  • Gastroenterology
  • Pelvic Floor Disorders

Background:

  • Evacuation dysfunctions significantly impact quality of life.
  • Conventional video defecography has advanced diagnostic capabilities.
  • Understanding morpho-functional imaging is crucial for diagnosis.

Purpose of the Study:

  • To describe key imaging features of recto-anal and pelvic floor disorders.
  • To illustrate physiological and pathological findings using conventional video defecography.
  • To enhance knowledge of evacuation dysfunctions through a pictorial essay.

Main Methods:

  • Review of over 2500 conventional video defecography examinations.
  • Analysis of imaging features from two radiology departments over 15 years.
  • Focus on common recto-anal and pelvic floor disorders.

Main Results:

  • Detailed imaging characteristics of rectal prolapse, rectocele, intussusception, enterocele, and sigmoidocele.
  • Description of descending pelvic floor syndrome and puborectalis muscle syndrome.
  • Demonstration of morpho-functional abnormalities in evacuation dysfunctions.

Conclusions:

  • Conventional video defecography remains the gold standard for evaluating evacuation disorders.
  • Accurate identification and staging of pelvic floor and recto-anal disorders are achievable.
  • This essay provides a comprehensive visual guide to common findings.