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Related Concept Videos

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...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

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Related Experiment Video

Updated: Jun 7, 2026

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions
06:08

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions

Published on: March 8, 2019

Ultrasonographic screening for abdominal aortic aneurysms.

Frank A Lederle1

  • 1Center for Chronic Disease Outcomes Research, Veterans Affairs Medical Center, Minneapolis, Minnesota 55417, USA. frank.lederle@med.va.gov

Annals of Internal Medicine
|September 19, 2003
PubMed
Summary

Screening older men for abdominal aortic aneurysms (AAAs) with ultrasonography can significantly reduce deaths from rupture. One-time screening is recommended for men aged 65-79 who have smoked.

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Area of Science:

  • Vascular Surgery
  • Preventive Medicine
  • Diagnostic Imaging

Background:

  • Abdominal aortic aneurysms (AAAs) affect 1 in 20 older men and are often asymptomatic.
  • Rupture of an untreated AAA leads to death in about one-third of patients.
  • Ultrasonography is a suitable screening tool, and elective repair can prevent rupture.

Purpose of the Study:

  • To evaluate the evidence for the benefit of AAA screening programs.
  • To determine optimal screening protocols and management strategies for AAAs.

Main Methods:

  • Analysis of four randomized trials involving over 125,000 men undergoing ultrasonographic screening for AAA.
  • Review of studies on screening age, frequency, and management of detected aneurysms.

Main Results:

  • AAA screening demonstrated a reduction in AAA-related mortality, statistically significant in two trials (21%–68% reduction).
  • No benefit was observed in one trial conducted in women.
  • Screening is recommended for men aged 65-79 who have ever smoked, with no need for repeat screening if initial results are negative.
  • Elective repair is recommended for AAAs >5.5 cm; smaller aneurysms require surveillance.

Conclusions:

  • One-time ultrasonographic screening for AAA is beneficial for men aged 65-79 who have ever smoked.
  • Selective repair of larger AAAs maximizes screening benefits and cost-effectiveness.
  • Current medical treatments do not slow AAA enlargement.