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Related Concept Videos

Intestinal Obstruction I: Introduction01:29

Intestinal Obstruction I: Introduction

Intestinal obstruction is a partial or complete blockage of the small or large intestine that disrupts the normal flow of intestinal contents through the lumen. This interruption impairs digestion, absorption, and fluid balance, and may lead to serious complications if not treated promptly.Mechanical ObstructionMechanical obstruction occurs when a physical blockage prevents intestinal contents from passing, arising from within the lumen or the bowel wall, or from external compression.Adhesions,...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
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,...
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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...
Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
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...

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Related Experiment Video

Updated: Jun 24, 2026

A Mouse Model of Intestinal Partial Obstruction
07:33

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

Small bowel obstruction: what to look for.

Ana Catarina Silva1, Madalena Pimenta, Luís S Guimarães

  • 1Department of Radiology, Unidade Local de Saúde de Matosinhos, EPE, Senhora da Hora, Matosinhos, Portugal. catarina.silva.hph@gmail.com

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|March 28, 2009
PubMed
Summary

Accurate diagnosis of small bowel obstruction (SBO) is crucial for effective treatment and reducing complications. An algorithmic imaging approach aids clinicians in timely diagnosis, severity assessment, and identifying strangulation, improving patient outcomes.

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Murine Ileocolic Bowel Resection with Primary Anastomosis
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Murine Ileocolic Bowel Resection with Primary Anastomosis

Published on: October 29, 2014

Related Experiment Videos

Last Updated: Jun 24, 2026

A Mouse Model of Intestinal Partial Obstruction
07:33

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

Murine Ileocolic Bowel Resection with Primary Anastomosis
08:49

Murine Ileocolic Bowel Resection with Primary Anastomosis

Published on: October 29, 2014

Area of Science:

  • Gastroenterology
  • Radiology
  • Abdominal Imaging

Background:

  • Small bowel obstruction (SBO) is a frequent clinical issue where delayed or incorrect diagnosis leads to severe patient morbidity and mortality.
  • Despite imaging advancements, SBO diagnosis remains challenging, necessitating a structured approach.

Purpose of the Study:

  • To propose an algorithmic imaging strategy for the diagnosis and management of small bowel obstruction.
  • To enhance diagnostic accuracy, determine obstruction severity and cause, and identify strangulation.

Main Methods:

  • Review of clinical findings, patient history, and initial triage examinations like plain abdominal radiography.
  • Utilization of advanced imaging techniques including enteroclysis, CT enteroclysis, ultrasonography, and multidetector CT based on initial findings.
  • Development of an algorithmic approach to guide imaging selection for SBO.

Main Results:

  • The proposed algorithm facilitates accurate diagnosis of SBO, differentiating between partial and complete obstructions.
  • Imaging modalities are tailored to obstruction severity, aiding in the assessment of strangulation risk.
  • Radiologists play a key role in providing critical information for clinical decision-making in SBO cases.

Conclusions:

  • An algorithmic imaging approach is essential for the timely and accurate diagnosis of small bowel obstruction.
  • Tailored imaging strategies improve the assessment of SBO severity, cause, and potential strangulation.
  • Effective radiologic interpretation is pivotal in guiding management decisions for patients with SBO.