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Related Concept Videos

Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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
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In gastric emptying studies, a meal's liquid and solid...

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Updated: Jun 24, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
07:12

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Optimizing the role of imaging in appendicitis.

Andrea S Doria1

  • 1Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G1X8, Canada. andrea.doria@sickkids.ca

Pediatric Radiology
|March 25, 2009
PubMed
Summary

Computed tomography (CT) offers higher accuracy for diagnosing childhood appendicitis than ultrasound (US). However, an integrated clinical-imaging approach can reduce unnecessary radiation exposure in children with low appendicitis risk.

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An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
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An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Area of Science:

  • Pediatric Surgery
  • Diagnostic Imaging
  • Radiation Oncology

Background:

  • Acute appendicitis is a common surgical emergency in children.
  • Computed tomography (CT) shows higher diagnostic sensitivity for appendicitis than ultrasound (US).
  • CT use in children raises concerns about radiation exposure and cancer risk.

Purpose of the Study:

  • To evaluate the diagnostic performance and safety of imaging modalities for pediatric appendicitis.
  • To explore strategies for optimizing imaging use in children with suspected appendicitis.
  • To minimize radiation exposure in pediatric patients while ensuring accurate diagnosis.

Main Methods:

  • Review of diagnostic performance data for CT and US in pediatric appendicitis.
  • Analysis of radiation risks associated with pediatric CT scans.
  • Proposal of an integrated clinical-imaging approach using clinical scores.

Main Results:

  • CT has superior sensitivity compared to US for diagnosing appendicitis in children.
  • Pediatric CT scans carry a quantifiable lifetime risk of radiation-induced cancer.
  • Clinical scores can help identify children at low risk for appendicitis, potentially avoiding imaging.

Conclusions:

  • An integrated clinical-imaging strategy can enhance diagnostic accuracy and reduce unnecessary radiation exposure in children.
  • Careful patient selection for imaging is crucial to balance diagnostic benefits against radiation risks.
  • Further research into risk stratification tools is needed to optimize appendicitis diagnosis in pediatric patients.